M4.4 Remapping.......

[oblark]

This is how I went about flashing my 2.5 lpt M4.4 ECU

Tried putting a battery charger on the battery to get the voltage up to 13.5v, the battery charger would only raise the voltage to 12.5v.
Borrowed a charger/booster which raised the voltage to 13.1v

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140216_125340.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140216_125340.jpg.html)

On the Wiki site it states the voltage needs to be 13.5v but I`ve found that aslong as the voltage is greater than 13v it will flash the ECU.
Using the software and bin file from the wiki site started flashing ECU

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140216_125403.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140216_125403.jpg.html)
http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140216_125742.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140216_125742.jpg.html)

The only change I`ve done to the bin file is to lower the tickover from 900-1000 rpm to 700 rpm.

Before
http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140216_132108.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140216_132108.jpg.html)

After
http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140216_125858.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140216_125858.jpg.html)

This is the part of the bin file I`ve changed

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140216_134034.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140216_134034.jpg.html)

I`m not going to go to mad with this ECU until the forged engine is up and running................. then the fun begins :)

[MoleT-5R]

A bit of careful testing, good idea to dip your toe and see what happens, think I'll be doing the same as my head is still hurting from a flashing overload from what I've read in the last few months, think it will be at least a year till I get going at it properly, but enjoying reading all your thread up dates Rob

[stribo]

Good to see you've made a start with it Rob, now the fun really begins.

[V70 Graham]

At least you can see from what you have done that it works, well done.

[theflyingbrick]

watching with keen interest as ill be doing this very soon :D

[oblark]

Been going through the bin files over the last few evenings and have found a "launch control" file :)

Hope to copy this file over to the map that I flashed onto the ECU at the weekend :)

[p fandango]

Been going through the bin files over the last few evenings and have found a "launch control" file :)

Hope to copy this file over to the map that I flashed onto the ECU at the weekend :)
Be interesting to see how that works, it must just limit the rpm while the car isn't moving

[oblark]

As far as I can tell it works when the clutch is depressed, you just set the a max and min rpm.

Also you have to set a restart rpm which I think is for when you lift the clutch for the engine to fire on all cylinders.

It`s a shame it only works by stopping the injectors not the spark plugs :(

[p fandango]

As far as I can tell it works when the clutch is depressed, you just set the a max and min rpm.

Also you have to set a restart rpm which I think is for when you lift the clutch for the engine to fire on all cylinders.

It`s a shame it only works by stopping the injectors not the spark plugs :(
So it'll only work on cars with cruise control as others don't have the clutch switch. The system I use cuts the ignition so sounds like the wrc cars anti-lag :)

[Dangerous Dave]

Think the launch control was changed because of the switch problem, the switch part was cut out of the code. Will have to check but I think the launch control applies when the car's speed is 0

[hybriduno]

launch control is controlled via the speed sensor on the car, ..... you set the rpm etc and the speed before launch control releases.

I cant run it on my build due to not having an abs/speed sensor.

so I will be re editing my map to read a micro switch on the clutch ;)

[oblark]

Think the launch control was changed because of the switch problem, the switch part was cut out of the code. Will have to check but I think the launch control applies when the car's speed is 0

I`ve been doing some more reading up on this and I was wrong, it doesn`t work off the clutch switch.

[oblark]

Had a play around today with the launch control day :)

23881

Max rpm 3100
Min rpm 3000
Reset rpm 2910

[theflyingbrick]

and did it work?

[oblark]

and did it work?

It works when standing still :)

I hope to go for a drive tomorrow to see if it really works :)

[theflyingbrick]

It works when standing still :)

I hope to go for a drive tomorrow to see if it really works :)

oooh exciting i cant wait to here/see the outcome :D don't forget your video camera if you go out ;)

[oblark]

Here`s a short video of what the launch control does. Haven`t tried it "off the lights" as I cant hold the camera & drive the car.


http://www.youtube.com/watch?v=w0NykFhNQo0&feature=c4-overview&list=UUEt803NMotSqikY7BOubWnA

[theflyingbrick]

that's sweet as mate well done :) youll have to show me how its done once I get mine road worthy ;)

[MoleT-5R]

Good work Rob, I'm miles behind, when it comes to the ecu at moment, just wish I was in the position to share 4.4 info and help you along but I'm months away from that at present

[Volvostorm]

This is one thing I want to try on mine :D

[MoleT-5R]

This is one thing I want to try on mine :D

get a cable and download the software and you can too!!!!.... but a step at a time, Rob is treading a nice cautious path, that will bare him the fruits he deserves, not sure I'd have has much self control when it comes to tweaking the ecu

[Volvostorm]

Need to get my 4.4 in to tweekable mode first, it still has an immobilizer bin file written to it at the moment :(

[oblark]

This little beauty arrived in the post today :)

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140225_165611.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140225_165611.jpg.html)
http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140225_173048.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140225_173048.jpg.html)

Once connect to the ECU and with trunerproRT I`ll be able to log boast values :)

[oblark]

Been busy playing around with mapping this weekend, discovered I brought the wrong boost sensor :( it sould be a MPX4250AP not a GP so the ignore the boost and AFR readings.

Here is the data logging, you will need excel to view it as my copy of excel is unregistered.

https://www.dropbox.com/s/7kaxz002tuhjvv1/1-3-2014%20dats%20log1.csv

[Dangerous Dave]

Been busy playing around with mapping this weekend, discovered I brought the wrong boost sensor :( it sould be a MPX4250AP not a GP so the ignore the boost and AFR readings.

https://www.dropbox.com/s/7kaxz002tuhjvv1/1-3-2014%20dats%20log1.csv
The GP variant should still work, just don't minus 14.7 off it (in Tunerpro settings) as it is calibrated to atmospheric pressure.

[oblark]

The GP variant should still work, just don't minus 14.7 off it (in Tunerpro settings) as it is calibrated to atmospheric pressure.

The reading I`m getting from the sensor is in volts and I cant work out how to get tunerpro to convert it to psi.

[Dangerous Dave]

It's on the VS thread somewhere, will see if I can find it for you bud. The AP sensor will still give a voltage, but is calibrated in a vacuum.

[Dangerous Dave]

PMd you back bud :-)

Formula for reference is:

MPX4250AP:
((((X/255) + 0.04)/0.004)*0.145) -14.7

MPX4250GP:
((((X/255) + 0.04)/0.004)*0.145)

[oblark]

Now I`ve got the boost sensor working it was time to finish of the ECU by fitting the socket for the AFR probe.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140308_161114.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140308_161114.jpg.html)

Went out for a drive to collect some date :)

23989

As you can see at full boost the MAF is close to maxing out :slap:

23987

This is why I went for a 3.25" Maf housing

And here is a bit more data logging :)

23988

[oblark]

Whilst sat on a beach on holiday I had a thought,

Instead of fitting oil temp & pressure gauges why not see if I can get the ECU to log these.

For the oil temp I`m thinking of fitting a water temp sensor (it uses 2 wires instead of the normal 1) into the drain plug and using the MAP channel in the ECU.

As for the oil pressure the sensor isn`t a problem but I`m not sure what channel to use but I`ve got a few options.

[Avinitlarge]

I would recommend buying an ostrich. You can write 1 value at a time in the blink of an eye, Doing it through the OBD is a PITA, You have to write a full binary, the voltage has to be correct, you have to go into bootloader. Non of this with the ostrich. I really do recommend it, only about £157 too.

[oblark]

I would recommend buying an ostrich. You can write 1 value at a time in the blink of an eye, Doing it through the OBD is a PITA, You have to write a full binary, the voltage has to be correct, you have to go into bootloader. Non of this with the ostrich. I really do recommend it, only about £157 too.

The only thing that puts me off the ostrich is soldering all the leads to the ECU PCB, I`m waiting to see if the arduino mega is any easier to fit :)

[jdavis]

cracking work Oblark!

[oblark]

Ordered this tonight link (https://www.moates.net/ostrich-20-the-new-breed-p-169.html) so this will make it alot quicker and easier to flash the ECU

[LiamT4]

Keep up the good work, seems to be coming along nicely.

[oblark]

This little beauty arrived in the post today

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140405_134630.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140405_134630.jpg.html)

Will make flashing the ECU quicker and easier :)

[stribo]

This little beauty arrived in the post today

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140405_134630.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140405_134630.jpg.html)

Will make flashing the ECU quicker and easier :)

Nice, heard good things about that, don't you have to solder loads of wires to the ECU though?

[oblark]

Nice, heard good things about that, don't you have to solder loads of wires to the ECU though?

The ostrich replaces the eprom chip.

[stribo]

I'm guessing you can't just unplug the EPROM chip, and plug the Ostrich in though.

[oblark]

I'm guessing you can't just unplug the EPROM chip, and plug the Ostrich in though.

No. the eprom chip is soldered to the PCB, Avintlarge will be removing the chip and installing the ostrich :)

[stribo]

Cool, rather him than me.;)

[oblark]

Quick upadte,

The ECU and ostrich 2.0 came back from Avinitlarge.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140417_153901.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140417_153901.jpg.html)

The EPROM chip has been removed and the ostrich installed in it`s place.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140417_154211.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140417_154211.jpg.html)

With the ostrich I now can save any changes to the map direct to the ecu instead of saving to the PC then flashing it the ECU :)

The next things to be connected to the ECU will be the wideband AFR, oil pressure sensor and oil temp sensor.

[Volvostorm]

Looking good that, I'm watching this with interest :)

[stribo]

Looks like you're getting on top of this remapping malarkey, fair play.

[MoleT-5R]

nice work Rob, the ostrich really reduces the work load re-mapping, so re-mapping on the hoof is almost reality for 4.4 then???

[Avinitlarge]

nice work Rob, the ostrich really reduces the work load re-mapping, so re-mapping on the hoof is almost reality for 4.4 then???

Yep, the ostrich make life SO much quicker and easier. The old way took over 2 mins to write the full file, with the ostrich, a second or 2. The big plus is, if you make 1 minor change, you dont have to write the full binary.

[oblark]

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140430_164309.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140430_164309.jpg.html)

Guess what I`m doing on bank holiday Monday ? :)

[Harvey]

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140430_164309.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140430_164309.jpg.html)

Guess what I`m doing on bank holiday Monday ? :)

I Guess lying on the floor getting wet. Nice something else to watch when you going flat out.:shockedbi

[stribo]

Nice bit of kit, hoping to get one myself soon. :)

[oblark]

Been going through hours of data logging and I`m starting to get my head around this remapping :)

As you can see from the two screenshots the I`m running really close to the figures in the map.

TCV set point.

24971

TCV duty cycle.

24972

[oblark]

Here`s the standard 850R MAF along side the BMW 540i MAF

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140528_165735.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140528_165735.jpg.html)

And here is BMW MAF with the 850R sensor installed.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140528_165830.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140528_165830.jpg.html)

[Dangerous Dave]

Wow, quite a difference when they're side by side

[theflyingbrick]

wow that's some girth you got there ;)

[MoleT-5R]

My brain is fried just trying to keep up with your progress Rob, great thread keep it up

[oblark]

I’ve loaded some new values onto the ecu and logged the results, I now have a STFT that goes from – 14 to +14 but the LTFT_PL is still at +25 and generating a fault code.

One thing that has been bothering me is that the logged air flow is not the same as the air flow in the maf editor.

When idling at 750 rpm with 3.25” maf bin file I’m logging 2-3 KG/HR less than what the maf editor says it should be, also the difference between logged and maf editor values gets greater as the air flow increases. The readings I`m getting are closer to 3” maf so I loaded a 3”maf bin file and tried that and I’m logging 2-3 KG/HR less than the values in the 3” maf editor.

For example, 0.588v = 15.75 KG/HR but I`m logging at 0.588v = 13.125
So the ecu is fuelling for 15.75kg/hr but they is only 13.125kg/hr of air.
As the air flow increases the difference between calculated and actual air flow increases to a point where I’ve logged a 40 kg/hr difference.
With that I thought it would be running rich but it’s running lean at part load or I’m I barking up the wrong tree.

As I was getting no where with that I tried lifting the maf out of the housing by 2 m/m and logged the values with the 3.25” bin file, I’m now with in 0.5-1 KG/HR of the values in the maf editor at 750 rpm and 1500 rpm.

I will try and go for a good run tomorrow to see if the LTFT_PL comes down.

!00 points and a mars bar to who ever can sort this little problem out :)

[stribo]

Sorry, that was all gibberish to me, which is why I won't be doing my own mapping. ;)

[jamesy12345]

Scaling factor for MAF output correct? It's 0.0196 according to some stuff I have about M4.4. Maybe this needs to be different for a bigger MAF?

Both lambda sensors working?

[oblark]

Sorry, that was all gibberish to me, which is why I won't be doing my own mapping. ;)

It was to me 6 months ago but it proves you can teach a old dog new tricks :)


Scaling factor for MAF output correct? It's 0.0196 according to some stuff I have about M4.4. Maybe this needs to be different for a bigger MAF?

Both lambda sensors working?

The scaling for the 3.25" maf over the standard maf is 1.94 using the maf editor I`ve got. My one and only O2 sensor is brand new :)

[960kg]

I’ve loaded some new values onto the ecu and logged the results, I now have a STFT that goes from – 14 to +14 but the LTFT_PL is still at +25 and generating a fault code.

One thing that has been bothering me is that the logged air flow is not the same as the air flow in the maf editor.

When idling at 750 rpm with 3.25” maf bin file I’m logging 2-3 KG/HR less than what the maf editor says it should be, also the difference between logged and maf editor values gets greater as the air flow increases. The readings I`m getting are closer to 3” maf so I loaded a 3”maf bin file and tried that and I’m logging 2-3 KG/HR less than the values in the 3” maf editor.

For example, 0.588v = 15.75 KG/HR but I`m logging at 0.588v = 13.125
So the ecu is fuelling for 15.75kg/hr but they is only 13.125kg/hr of air.
As the air flow increases the difference between calculated and actual air flow increases to a point where I’ve logged a 40 kg/hr difference.
With that I thought it would be running rich but it’s running lean at part load or I’m I barking up the wrong tree.

As I was getting no where with that I tried lifting the maf out of the housing by 2 m/m and logged the values with the 3.25” bin file, I’m now with in 0.5-1 KG/HR of the values in the maf editor at 750 rpm and 1500 rpm.

I will try and go for a good run tomorrow to see if the LTFT_PL comes down.

!00 points and a mars bar to who ever can sort this little problem out :)


I don`t understand the figures either ....but looking at it logically which this may be the reason for the wrong or expected figures!........

The pic. of the 850R MAF the sensor part which reads the volume of air is in the centre of the MAF which it has to be to read the volume correctly also the design of the sensor with it`s thicker holder would of been calculated into the equation as it will effect the volume of air going past.

The pic. of the BMW MAF holder with the Volvo sensor in, the sensor is not in the centre of the holder so therefore you won`t get a proper reading of volume!

Also if you compare the Youtube pic. of the BMW MAF holder with it`s own sensor you will see although the pic. is on an angle the sensor is in the centre of the holder and is extremely thin to avoid any loss of volume of air going past and also will read the volume accurately.

I think the reason it is lean is because the 850R sensor is off centre in the BMW holder and so it is only capable of reading less but more air is going past due to it`s diameter.


Can you not use the BMW sensor or are the electrical ohms etc different or if you have a spare 850 sensor try modifying to go deeper into the holder to be central and also trim some plastic off it?

Good Luck

......................................

[oblark]

I understand where you are coming from with the 850 sensor not being in the middle of the housing. The formula that I`m using with the maf editor software take in to account that the 850 sensor is not in the middle of the housing.

When I moved the sensor even more away from the centre of the housing my kg/hr readings where closer to the values in the maf editor software.

[ExternalError]

I don`t understand the figures either ....but looking at it logically which this may be the reason for the wrong or expected figures!........

The pic. of the 850R MAF the sensor part which reads the volume of air is in the centre of the MAF which it has to be to read the volume correctly also the design of the sensor with it`s thicker holder would of been calculated into the equation as it will effect the volume of air going past.

The pic. of the BMW MAF holder with the Volvo sensor in, the sensor is not in the centre of the holder so therefore you won`t get a proper reading of volume!

Also if you compare the Youtube pic. of the BMW MAF holder with it`s own sensor you will see although the pic. is on an angle the sensor is in the centre of the holder and is extremely thin to avoid any loss of volume of air going past and also will read the volume accurately.

I think the reason it is lean is because the 850R sensor is off centre in the BMW holder and so it is only capable of reading less but more air is going past due to it`s diameter.


Can you not use the BMW sensor or are the electrical ohms etc different or if you have a spare 850 sensor try modifying to go deeper into the holder to be central and also trim some plastic off it?

Good Luck

......................................

Could it have something to do with forced air hitting the sides of the MAF and causing pockets of turbulance which is why sensor is normally located at the centre. Not really sure but it seems to make sense in my head at least

[960kg]

I understand where you are coming from with the 850 sensor not being in the middle of the housing. The formula that I`m using with the maf editor software take in to account that the 850 sensor is not in the middle of the housing.

When I moved the sensor even more away from the centre of the housing my kg/hr readings where closer to the values in the maf editor software.

But that would make sense Rob as the more off centre the sensor is the more correct the MAF editor software readings are because as you say it allows for it!



Could it have something to do with forced air hitting the sides of the MAF and causing pockets of turbulance which is why sensor is normally located at the centre. Not really sure but it seems to make sense in my head at least


I don`t know but surely the larger BMW MAF is designed to work with it`s own more slender sensor in it`s centre......so really the nearer to the same shape as the original would be best, which is why i just suggested playing with the 850 sensor to allow it to get nearer the centre and also trim some plastic from it to make it more slender and as you say it would minimize turbulence of the measured air!

One thing seems definite ......the sensor is not accurately measuring the volume of air going past as the mix is lean!

[jamesy12345]

...
The scaling for the 3.25" maf over the standard maf is 1.94 using the maf editor I`ve got. My one and only O2 sensor is brand new :)

The scaling factor I mentioned was from here, page 10

http://www.paerl.it/volvo/Volvo%20Motronic%204.4.pdf

[Avinitlarge]

But that would make sense Rob as the more off centre the sensor is the more correct the MAF editor software readings are because as you say it allows for it!





I don`t know but surely the larger BMW MAF is designed to work with it`s own more slender sensor in it`s centre......so really the nearer to the same shape as the original would be best, which is why i just suggested playing with the 850 sensor to allow it to get nearer the centre and also trim some plastic from it to make it more slender and as you say it would minimize turbulence of the measured air!

One thing seems definite ......the sensor is not accurately measuring the volume of air going past as the mix is lean!

The BMW sensor is exactly the same as the Volvo one, the only difference is the plug. There are a number of people using this maf and table with no problems. Rob has a very odd issue. I would like him to get to the bottom of this, he has spent a lot of time on it. I can't see it, possible faulty ECU? I suppose its worth trying another.

[oblark]

The BMW sensor is exactly the same as the Volvo one, the only difference is the plug. There are a number of people using this maf and table with no problems. Rob has a very odd issue. I would like him to get to the bottom of this, he has spent a lot of time on it. I can't see it, possible faulty ECU? I suppose its worth trying another.

I`ve sent my bin file to Maarten who is going to check it in HxD, I hope to god it`s not a ecu problem but I`m on the look out for another one to do the same mod that you`ve done :wink:

[oblark]

The maf upper & lower tables didn`t match, thats why the logged values didn`t match the values in the maf table.

Thats that problem sorted on to the next, my LTFT_PL

My LTFT_PL is @+29.69 which is way to high, I`ve tried all different values but with no joy.

I know I was adding to much fuel as the car back fired everytime I changed gear.

Will get they in the end :)

[Jamest5r]

The maf upper & lower tables didn`t match, thats why the logged values didn`t match the values in the maf table.

Thats that problem sorted on to the next, my LTFT_PL

My LTFT_PL is @+29.69 which is way to high, I`ve tried all different values but with no joy.

I know I was adding to much fuel as the car back fired everytime I changed gear.

Will get they in the end :)

Over run on.lift.off is good I say keep it, do you get flames? :)

[oblark]

After going through a load of data logging, text files and xld files I thing I've found the problem.

Now I dont want to tell how I've come to this conclusion as it is complicated and it will go straight over your heads

but I need a new fuel filter.

[oblark]

Well I`ve changed the fuel filter and guess what still the same, So I`ve done some testing with different injectors/maf`s. The idea is to get the LTFT_PL to be as close to zero as posible on idle and while driving.

Whites with 3.25 maf @ idle

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/Screenshot2014-07-27whites-325mafonidle.png (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/Screenshot2014-07-27whites-325mafonidle.png.html)

Whites with 3.25 maf driving

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/Screenshot2014-07-27whites-325mafdriving.png (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/Screenshot2014-07-27whites-325mafdriving.png.html)

Whites with stock maf @ idle

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/Screenshot2014-07-27whites-stockmafonidle.png (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/Screenshot2014-07-27whites-stockmafonidle.png.html)

Whites with stock maf driving

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/Screenshot2014-07-26whites-stockmafdriving.png (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/Screenshot2014-07-26whites-stockmafdriving.png.html)

So the problem looks like it`s the 3.25 maf/maf table. I`m going to send the white/stock maf bin file to Piet who is goin to convert it to run the 3.25 maf as something is wierd is going on with my maf table convertor software.

[Dangerous Dave]

Yep, seems that way.

Hopefully Piet can get the right values for you.

[M-R-P]

Still want the squirters checked Rob?

[theflyingbrick]

well at least you found whats bugging it up,good news ;)

[oblark]

Still want the squirters checked Rob?

I`m holding fire on them at the moment, I`ll see what comes back about the maf table :)

[oblark]

On Piet`s recomemdation I`ve checked the sensor too housing fit.

Sorry for the picture quality as they where taken on my phone.

I discovered that the 850 (right) sensors o ring is 6mm from the flange and the BMW (left) sensors o ring is 10mm from the flange.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140728_193304.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140728_193304.jpg.html)

Also the BMW maf housing has a 6mm deep chamfer whilst the volvo one only has a 2mm chamfer.

BMW maf housing.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140728_192846.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140728_192846.jpg.html)

Volvo maf housing.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140728_193007.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140728_193007.jpg.html)

So the o ring on the 850 sensor is not sealing againt the BMW housing as it sits where the chamfer is, to overcome this little problem I`ll get a thicker o ring tomorrow from work.

Then I`ll refit the maf with Piet`s bin file.

[Dangerous Dave]

Hmm, so it may be leaking then

[oblark]

Hmm, so it may be leaking then

It looks like it could of been, but only slightly.

[theflyingbrick]

slightly would be enough to cause grief on a standard tune so i reckon itll cause havoc on yours!!

[oblark]

The o ring on the 850 sensor is 3mm, so I`ve fitted a 4mm and its sealed the sensor to the housing.



The first picture is the 850 o ring and sensor, the second picture is the with the 4mm o ring, it pulled in nicely when the screws where done up.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140729_163602.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140729_163602.jpg.html)

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140729_163647.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140729_163647.jpg.html)

I`ll go for a drive later on once the rush hour traffic has died down and report back

[oblark]

Loaded the bin file Piet checked for me and result :):):):):):):):) one happy bunny

Here two screenshots first is at idle and the second one is driving.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/Screenshot2014-07-29171508.png (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/Screenshot2014-07-29171508.png.html)

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/Screenshot2014-07-29205035.png (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/Screenshot2014-07-29205035.png.html)

[theflyingbrick]

wow thats a big difference!! just a little leak huh? glad you sorted it mate

[oblark]

wow thats a big difference!! just a little leak huh? glad you sorted it mate

I`ve got to refit the greens and check the readings, if they stay at or near zero then I have to try my bin file to see if it was a leak or a corrupt bin file.

All will be clear by the end of the weekend :)

[theflyingbrick]

well ive got my fingers crossed mate ;)

[Dangerous Dave]

Cool, nice one!

Another problem solved (hopefully). Its great to have all this experimentation otherwise we would never find these things out.

Bring on the COP conversion!!

[oblark]

Cool, nice one!

Another problem solved (hopefully). Its great to have all this experimentation otherwise we would never find these things out.

Bring on the COP conversion!!

Thanks,

The ECU for the COP`s is being sent off shortly to have the resistors fitted :)

[Dangerous Dave]

Thanks,

The ECU for the COP`s is being sent off shortly to have the resistors fitted :)
Awesome :D :D

Must get me a spare ecu, have some more playing to do when I get the time.

[oblark]

Had a spare 5 minutes last night so I load on white/3.25 maf bin file and the LTFT_PL went mad, When I checked the maf table for that bin file I found that that the voltage to air flow where all over the place. So I made up a fresh white/3,25 maf bin file and loaded that on the car and the LTFT_PL where back down to almost zero :) so it looks like I`ve been using so corrupt maf table files. I spent a good few hours last night going through all the 3.25 maf bin files and deleting all the corrupt ones.

Next step is to refit the greens and set them up so that the LTFT_PL is as close as possible to zero which I plan to do after work today as the weather for the weekend down here looks like it mite be a bit wet.

Had a email from Maarten who has finished making/testing the box of tricks that will enable to log extra channels :) so I`ll be able to log, oil temp, oil pressure, fuel pressure, pre & post intercooler air temp and exhaust gas temp.

[Dangerous Dave]

Good news then :)

I had a problem with a corrupt file which kept cutting out as soon as the car moved, would idle fine. Did a file comparison and found that the speed fuel cut was set to 0 so as soon as it detected a vehicle speed the engine died. God know how it got changed as I wouldn't even touch that setting. All good once that was found out.

[oblark]

Well the green/3.25 maf was loaded on the car this morning and went for a drive to dyno at Gosport to rebilud the cooloing fan motor, then on to the breakers to get Grahams timing belt cover, logged the whole trip and I can report back that I`ve now set up the greens with the 3.25 maf :)

Screen shot of the LTFT driving along the M27

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/revisedmafrobmap.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/revisedmafrobmap.jpg.html)

On to the next problem.......

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/robmapboost.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/robmapboost.jpg.html)

14 psi of boost at 3000rpm :yikes:

[Dangerous Dave]

Nice one


On to the next problem.......

14 psi of boost at 3000rpm :yikes:
Thats ok isn't it? From what I've read on the WothR website about 1bar at 3000rpm is ok/maximum. You got standard rods in?

[oblark]

You got standard rods in?

Yeah, I`m running standard rods.

I`ve found out that to overcome the boost at 3000 rpm I need to lower the TCV set point :)

[oblark]

Pick the fuel rail up from the fabricators after they have welded a 1/8 bsp bung in the end and the extra logging device arrived from the Netherlands :)

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140804_170817.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140804_170817.jpg.html)

[MoleT-5R]

Pick the fuel rail up from the fabricators after they have welded a 1/8 bsp bung in the end and the extra logging device arrived from the Netherlands :)

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140804_170817.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140804_170817.jpg.html)where does the extra channels box wire into Rob ??

[oblark]

It just needs a live, ground and tapping into the K-line which I`ll either do in the ecu or by the OBD2 socket.

[Volvostorm]

It just needs a live, ground and tapping into the K-line which I`ll either do in the ecu or by the OBD2 socket.

In your other thread, I've put how to wire in the OBD2 port ;)

[oblark]

In your other thread, I've put how to wire in the OBD2 port ;)

The thread about converting a obd1 car to run a obd2 ecu is for a mate who wants to see if it possible to do :)

My 850 is obd2 :)

[Volvostorm]

The thread about converting a obd1 car to run a obd2 ecu is for a mate who wants to see if it possible to do :)

My 850 is obd2 :)

Was interesting, as you have an Ostrich!

But, that is how you have to convert a pre-obd car :)

(Mine is pre-obd)

[oblark]

Went to the local piston head meet this evening and it was an ideal time to try turning the boost down, so I loaded the TCV set points for 19T.
Well I had to ring it`s neck to get 7psi of boost.
So I loaded the TCV set points for 20G and she went like a rocket :) on 11 psi of boost, most of the time I ran out of road :)

At 50% throttle I had, a maf voltage of 3.14v(5v max), 595kg/hr (1603kg/hr max) and a injector duty cycle of 57% still plenty of room for expansion :)

[Dangerous Dave]

Went to the local piston head meet this evening and it was an ideal time to try turning the boost down, so I loaded the TCV set points for 19T.
Well I had to ring it`s neck to get 7psi of boost.
So I loaded the TCV set points for 20G and she went like a rocket :) on 11 psi of boost, most of the time I ran out of road :)

At 50% throttle I had, a maf voltage of 3.14v(5v max), 595kg/hr (1603kg/hr max) and a injector duty cycle of 57% still plenty of room for expansion :)
Love it, and just on 11psi!

Where did you get the setpoints for the different turbos from?

[oblark]

This little bad boy arrived today .....

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140805_160314.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140805_160314.jpg.html)

Here is the oil temp sensor with its adapator to fit in the drain plug hole.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140805_160342.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140805_160342.jpg.html)

Stared wiring the logging device in, the oil pressure sensor was fitted when I changed engines over.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140805_160622.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140805_160622.jpg.html)

Hopefully the 2 thermocouples for the pre & post intercooler temps will arrive by the weekend and I can get them all wired in and running :)

[caseyt5]

I think i'm the only idiot that cannot work out how to use tunerpro and motronic suite! Looking good tho Rob when you bringing her out or going to any meets?

[oblark]

I think i'm the only idiot that cannot work out how to use tunerpro and motronic suite! Looking good tho Rob when you bringing her out or going to any meets?

I went to the last southern meet and will be at the next one on the 24th August :)

If you can bring your ecu to the next meet I`ll see what I can do.

[Jamest5r]

I think i'm the only idiot that cannot work out how to use tunerpro and motronic suite! Looking good tho Rob when you bringing her out or going to any meets?

Same reason I bought a TurboTuner then even ran out of talent with that and paid someone else to map it lol :)

[oblark]

Same reason I bought a TurboTuner then even ran out of talent with that and paid someone else to map it lol :)

You are so limited to what you can do with turbo tuner.

[Jamest5r]

You are so limited to what you can do with turbo tuner.

I'm limited full stop :)

[oblark]

More goodies turned up today :)

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140806_192355.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140806_192355.jpg.html)

The only thing is that they were advertised as having a M8 thread but they have a 1/4 UNC thread :(

So instead of welding on 2 stainless M8 nuts I`ve got to make 2 1/4 UNC stainless bosses.

[oblark]

Finally got around to fitting the thermocouples and wiring in the oil sensors.

26467

The oil pressure when the engine is cold is 60 psi and then drops as the oil warms up to 30 psi :) Hopefully will get the oil temp sensor fitted over the weekend.
The thermocouples readings bounce around to a piont where you can`t read them, not to sure if this is down to cheap thermocouples.
Will get the fuel pressure sensor fitted once it arrives which should be by the middle of next month.

[stribo]

Urm, not wishing to sound thick (but doing so anyway) is the oil pressure as it should be , or should it be higher/lower?

[oblark]

Urm, not wishing to sound thick (but doing so anyway) is the oil pressure as it should be , or should it be higher/lower?

The Haynes book of lies states that the oil pressure at idle should be 15 psi and climbing to 45 psi at 3000 rpm

Personally I would perfer higher than lower oil pressure :)

[stribo]

The Haynes book of lies states that the oil pressure at idle should be 15 psi and climbing to 45 psi at 3000 rpm

Personally I would perfer higher than lower oil pressure :)

I know what you're saying, but will it not start blowing seals if it's too high?

[oblark]

I know what you're saying, but will it not start blowing seals if it's too high?

The way I see it is that when the oil is cold it`s thicker and can`t flow out of the brgs but as the oil warms up it becomes thinner and can flow easier out of the brgs those lowering the oil pressure. I will be able to back this theroy up once I`ve fitted the oil temp sensor.

Or I could be barking up the wrong tree :)

[stribo]

The way I see it is that when the oil is cold it`s thicker and can`t flow out of the brgs but as the oil warms up it becomes thinner and can flow easier out of the brgs those lowering the oil pressure. I will be able to back this theroy up once I`ve fitted the oil temp sensor.

Or I could be barking up the wrong tree :)

Yeah, I understand why the oil pressure is higher when cold, but when warm at idle it's supposed to be 15 psi, and yours is double that, so I'm guessing at 3000 RPM it'll be considerably higher than 45 psi, just wondering what oil pressure you can run before you start blowing seals.

[oblark]

Yeah, I understand why the oil pressure is higher when cold, but when warm at idle it's supposed to be 15 psi, and yours is double that, so I'm guessing at 3000 RPM it'll be considerably higher than 45 psi, just wondering what oil pressure you can run before you start blowing seals.

I`ll let you tomorrow once I`ve been to Steve`s and back :)

[Volvostorm]

Most oils on the shelves today are "Multigrades", which simply means that the oil falls into 2 viscosity grades (i.e. 10w-40 etc)
Multigrades were first developed some 50 years ago to avoid the old routine of using a thinner oil in winter and a thicker oil in summer.
In a 10w-40 for example the 10w bit (W = winter, not weight or watt or anything else for that matter) simply means that the oil must have a certain maximum viscosity/flow at low temperature. The lower the "W" number the better the oil's cold temperature/cold start performance.
The 40 in a 10w-40 simply means that the oil must fall within certain viscosity limits at 100°C. This is a fixed limit and all oils that end in 40 must achieve these limits. Once again the lower the number, the thinner the oil: a 30 oil is thinner than a 40 oil at 100°C etc. Your handbook will specify whether a 30, 40 or 50 etc is required.

The oil pump has a relief valve, so it shouldn't go high enough to blow seals.

[Ettienne]

Most oils on the shelves today are "Multigrades", which simply means that the oil falls into 2 viscosity grades (i.e. 10w-40 etc)
Multigrades were first developed some 50 years ago to avoid the old routine of using a thinner oil in winter and a thicker oil in summer.
In a 10w-40 for example the 10w bit (W = winter, not weight or watt or anything else for that matter) simply means that the oil must have a certain maximum viscosity/flow at low temperature. The lower the "W" number the better the oil's cold temperature/cold start performance.
The 40 in a 10w-40 simply means that the oil must fall within certain viscosity limits at 100°C. This is a fixed limit and all oils that end in 40 must achieve these limits. Once again the lower the number, the thinner the oil: a 30 oil is thinner than a 40 oil at 100°C etc. Your handbook will specify whether a 30, 40 or 50 etc is required.

The oil pump has a relief valve, so it shouldn't go high enough to blow seals.

Well pasted lol

[oblark]

Had time today to fit the oil temp sensor,

26661

This is oil temp at idle, ignore the pre & post intercooler temps as the thermocouples are £$%&ed

[960kg]

Just to add to what has been said.

Here are Volvo`s figures which must be more accurate than in Haynes!

You can see it depends what year and engine one has in there motor also you see the 850 T engine can run a higher oil pressure due to three different relief springs in the pump.

In my old school days the common thing on our Coopers was to put a thick nut off a 1/4 bolt on the end of the spring to give it 60 psi.......memories!

Conversion figures = Bottom Pic. For 1997 - B5234T3

0.10 = 14.50 psi @ 800rpm

0.10 = 14.50 psi @ 850rpm

0.35 = 50.76psi @ 4000rpm

Max. Pressure of 0.48 = 69.618psi


Top Pic. For 1996 850 B5234T + others as stated

0.10 = 14.50 psi @ 800rpm

0.10 = 14.50 psi @ 850rpm

0.35 = 50.76psi @ 4000rpm

Max. Pressure of 0.70 = 101.52psi Depending on length of Relief Spring

[oblark]

I think I`ve found out why my car was blowing blue smoke at WOT when changing gear.

26799

It looks like the timing is out, I`ve been using rev5 instead of rev6.

[oblark]

I loaded 608 rev6 yesterday and went for a drive this evening.

It runs better and goes better but I`ve maxed my greens out :yikes:

26804

[Jamest5r]

Please excuse my ignorance I'm just learning, afrs are perfect, boost is at 15.6psi how come it's maxing the green's?

[jamesy12345]

Please excuse my ignorance I'm just learning, afrs are perfect, boost is at 15.6psi how come it's maxing the green's?

bigger maf??

[oblark]

Please excuse my ignorance I'm just learning, afrs are perfect, boost is at 15.6psi how come it's maxing the green's?

In an ideal world you don`t want to take the injector duty cycle over 80% and I`m at 94%

[oblark]

bigger maf??

The maf maxes out at 1603 kg/hr

So I`ve got a long way to go to max that out :)

[LiamT4]

The maf maxes out at 1603 kg/hr

So I`ve got a long way to go to max that out :)

Are you still using the maf from the bmw m62 v8 (4.4)?

[oblark]

If you use the formula from this web site

http://www.translatorscafe.com/cafe/EN/units-converter/flow-mass/10-2/kilogram%2Fhour-gram%2Fsecond/

And convert kg/hr to grams/sec then divide that by 0.8 I`ve hit 300.69bhp :)

[oblark]

Are you still using the maf from the bmw m62 v8 (4.4)?

It`s from a V8 540i

[jamesy12345]

The maf maxes out at 1603 kg/hr

So I`ve got a long way to go to max that out :)

I meant that the maf can flow more than the injectors can cope with

[oblark]

I meant that the maf can flow more than the injectors can cope with

Yeap :)

[LiamT4]

It`s from a V8 540i

Yep thats the one. They are fine for a stage 3 supercharger kit on an e39 540, which is around 480bhp.

Actually, i'm wrong. They are fine for stage 1 and 2, but should be replaced on the stage 3, so they're only good for around 415bhp ;)

[960kg]

In an ideal world you don`t want to take the injector duty cycle over 80% and I`m at 94%

The thing is there is no ideal world!...

Most Volvo`s run at approx. 85% of the injector cycle ......94% is fine nothing wrong at all

The X40 T4 has the smallest sized injectors and according to Theory it should not deliver what it does!......but Volvo must have it correct as when not on full chat it is the most economical Volvo engined X40...

[oblark]

The thing is there is no ideal world!...

Most Volvo`s run at approx. 85% of the injector cycle ......94% is fine nothing wrong at all

The X40 T4 has the smallest sized injectors and according to Theory it should not deliver what it does!......but Volvo must have it correct as when not on full chat it is the most economical Volvo engined X40...

But I think 98.7% is a bit high :)

26808

And thats 309bhp :)

[Nari]

But I think 98.7% is a bit high :)
oh c'mon.. I punished the tiny little 315 injectors with e85 and 1.3bar of boost (18t) when I was on VEMS... it told me they are over 110% from about 0.6bar :D
before that I saw 160%, but that was bc if a failing fuel pump. Sturdy little b ast ards :D

[oblark]

COP (coil on plugs) update

I`ve just recieved these pictures from Paul (Avinitlarge) who has done a fantastic job converting the M4.4 ecu.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/received_m_mid_1410884297589_c627aba74a917be027_0. jpeg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/received_m_mid_1410884297589_c627aba74a917be027_0. jpeg.html)
http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/received_m_mid_1410884308536_f4c22124e53f4ff460_0. jpeg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/received_m_mid_1410884308536_f4c22124e53f4ff460_0. jpeg.html)

[Nari]

Nice, my cop-ed ECU is ready for action as well :)

[Jamest5r]

I've got cop built into my turbo tuner but never really considered using it, are the benefits worth it? seems to run ok on the dizzy

[oblark]

I`m lead to believe you get a better spark with COP`s

[oblark]

Fitted the fuel rail pressure transmitter.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20140920_142356.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20140920_142356.jpg.html)

So at idle I have 32.98 psi fuel rail pressure.

26826

[oblark]

As mensioned in my M66D thread (http://www.vpcuk.org/forums/showthread.php?57655-M66D-in-a-850-and-a-top-speed-of-220-mph&p=742122&highlight=#post742122) I`ve lowered the O2 warm up time and enrichment V`s temp tables.

These are the values for the enrichment V`s temp (left) and O2 warm up time (middle and right)

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/oldenricmentvtemp.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/oldenricmentvtemp.jpg.html)

I`ve lowered the enrichment by 28% and lowered the O2 warm up by 20-30 degrees on all temps from zero to 110 degrees C

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/revisedenrichmentVtemp.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/revisedenrichmentVtemp.jpg.html)

The car started and ran OK with a low AFR of 12 for a few minutes then the AFR climbed to 14.7-15.3 until the temp came up to normal,

Before hand it would stay at a AFR of 12 for 7-10 minutes before climbing to a AFR of 14.5-14.9

So form these results I`ve managed to reduce the fueling amount on start up, I`ll will confirm over the weekend if I`ve managed to increase my MPG :)

[Dangerous Dave]

7-10 minutes, wow, thats a lot of fuel being wasted.

Nice one!

[oblark]

RESULT :)

Did a 70 mile round trip to the breakers this morning to pick up a few bits and bobs.

My MPG has gone from 19 to a average of 26.3 mpg

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20141018_100522.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20141018_100522.jpg.html)

[Avinitlarge]

COP (coil on plugs) update

I`ve just recieved these pictures from Paul (Avinitlarge) who has done a fantastic job converting the M4.4 ecu.

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/received_m_mid_1410884297589_c627aba74a917be027_0. jpeg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/received_m_mid_1410884297589_c627aba74a917be027_0. jpeg.html)
http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/received_m_mid_1410884308536_f4c22124e53f4ff460_0. jpeg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/received_m_mid_1410884308536_f4c22124e53f4ff460_0. jpeg.html)

Thank you for the kind words :D

[kmb]

I can confirm that oblark has perfected his mapping, he provided me with one of his mapped ECU's I requested a conservative and safe map, my 96 850 T5 has 136k miles just been fully serviced and ITG panel filter and Powerflow Stainless cat back exhaust, here are my findings after 200 miles with it fitted:

Oblark put together a map which increases boost to 15 psi (from standard 9.6psi), the speed limiter stays at 160mph and boost limiter is 15psi... the car is considerably faster, and possibly smoother, which is a surprise. It is still very progressive with not too many traction control problems. It really flies on boost!

The boost guage now goes to 90% max where as it was about 65%, engine was a little lumpy until it learnt, the lamba light also flashed on a few times in the first 20 odd miles but haven't seen it since.

Nice to hear a bit more turbo whistle and it's certainly come alive.

[M-R-P]

He's a good lad is our Rob (if a little grumpy ;) )

[kmb]

His communications were top notch and he seems a good egg.

I've driven to work today in it instead of my boring 2014 A4 TDi, people think I'm crazy... the stainless exhaust burble is addictive so I'll use it tomorrow too!

[M-R-P]

Take the soundproofing off the bonnet ;)

[kmb]

Tempted but noooooo.

[M-R-P]

Tempted but noooooo.

Booo...

Drill the bottom of the air box too ;)

[kmb]

I was going for the mint and completely standard look, but with some under the bonnet hidden goodies, not Heath Robinson ghetto mods :lol:

[stribo]

I was going for the mint and completely standard look, but with some under the bonnet hidden goodies, not Heath Robinson ghetto mods :lol:

You'll have to excuse MRP, he's a chav. ;)

[M-R-P]

:finger:

[Jamest5r]

You'll have to excuse MRP, he's a chav. ;)

And he makes a dam good job of it :)

[Dan H]

I've also had my ecu mapped from a 2.5T LPT software and Rob whiped it and put t5 software and a map on it to go with my new t5 engine, I've not driven a standard t5, but the map on mine is really good! boost comes in smooth and keeps on climbing to around 16psi, and has out ran a few 'fast' things close to me, Need to get it on the rolling road after Christmas to what power it is pushing out!

Would recommend Rob's services to anyone! Great Service

[oblark]

Not done anything to this just a few fine tweaks to the map to get MPG better.

I`ll be loading a bin file on the ecu at the weekend that takes the control of the fuel trim from the narrowband (lambda sensor) to the wideband. This means the AFR`s are more controllable.

[MoleT-5R]

Not done anything to this just a few fine tweaks to the map to get MPG better.

I`ll be loading a bin file on the ecu at the weekend that takes the control of the fuel trim from the narrowband (lambda sensor) to the wideband. This means the AFR`s are more controllable.

I'm looking forward to the next update, as I'm just in the process of going back though these 4.4 mapping and logging threads as I'm now in the position that I really need to start down this road with the next stages of olives development, just hope I understand it fully so I feel able to proceed.

[Avinitlarge]

Not done anything to this just a few fine tweaks to the map to get MPG better.

I`ll be loading a bin file on the ecu at the weekend that takes the control of the fuel trim from the narrowband (lambda sensor) to the wideband. This means the AFR`s are more controllable.

It makes a hell of a difference, a lot smoother. Ive gone back to narrowband control from WB control just to set up my 750cc injectors and its awful.

[kmb]

I chanced upon a thread somewhere where someone was saying Air Con doesn't work if you stick a M4.4 in an 850, any truth in that Rob, didn't see the logic in it? I'm sure my air con still works fine even though my 850 is on your M4.4 ECU and map...

[Avinitlarge]

If you fit the ECU without changing 2 values in the bin, the AC won't work. At one time you had to do a hardware mod but recently, A very nice clever bloke called Piet from the Netherlands found a way to do it with no hardware mods

[kmb]

Interesting, wonder if Rob has managed to do the same?

I must admit I only used my A/C to clear windows on a wet day so am not yet 100% certain it works (also away for the next 3 weeks in France so cannot check yet) :)

[Avinitlarge]

Im not sure, I thought he had binned the A/C anyway?

[kmb]

This was in reference to the ECU he mapped for me...

[Avinitlarge]

The soft mod only came to light 5th March, Not sure about the hardware mod. Either way, You have to do one or the other to get the AC working correctly of you convert from 4.3 to 4.4

[oblark]

Finally got around to loading the bin file for the wideband control.

It`s made tunning alot easier :) you see what the AFR`s are realtime compared with that they are in the VE table.

28799

[p fandango]

how much do you change for a basic 4.4 remap to make it work in a 4.3, got an ecu that's supposed to of been tweaked but BT still won't run with it so assume the immobilisers still in place

[MoleT-5R]

Finally got around to loading the bin file for the wideband control.

It`s made tunning alot easier :) you see what the AFR`s are realtime compared with that they are in the VE table.

28799

nice to see you back on the mapping, I'm on the look out for a couple of ecu's and I'll be starting down this route as soon as I get them

[claymore]

nice to see you back on the mapping, I'm on the look out for a couple of ecu's and I'll be starting down this route as soon as I get them

Me too

[oblark]

how much do you change for a basic 4.4 remap to make it work in a 4.3, got an ecu that's supposed to of been tweaked but BT still won't run with it so assume the immobilisers still in place

The standard map I`ve got for the M4.4 is for whites & standard maf

I`ve pm`d you.

[oblark]

nice to see you back on the mapping, I'm on the look out for a couple of ecu's and I'll be starting down this route as soon as I get them

I`ve had to get back into the remapping as project 240 is almost finished then it`s on with the ME7 engine to get it in the 850.

[oblark]

Update time. First data log with plenum chamber.

29555

She's idling a bit fast which I think is a small air leak as the idle is high and the AFR's are slightly out.

But otherwise everything else looks ok :)

[Dangerous Dave]

Cool :)

Gonna be ordering an ostrich soon :D

[MoleT-5R]

Nice to see a mapping update rob, just started myself on the datalogging/flashing, giving me a bit of a headache to be honest, but Dangerous Dave has been most help and kept me sane, hope to getting it all running properly this week as I have had some issues connecting with the car, so hope to make a ecu docking/flashing station is week to get around that issue

[oblark]

Nice to see a mapping update rob, just started myself on the datalogging/flashing, giving me a bit of a headache to be honest, but Dangerous Dave has been most help and kept me sane, hope to getting it all running properly this week as I have had some issues connecting with the car, so hope to make a ecu docking/flashing station is week to get around that issue

A ostrich is the way to go, it makes it a lot easier to make changes to the ecu even when the engine is running.

[MoleT-5R]

A ostrich is the way to go, it makes it a lot easier to make changes to the ecu even when the engine is running.

noted and will be looked when funds will allow, but will have to take the slow route till then, though that's probably not a bad thing till I get to grips with it

[oblark]

Idle sorted :)

I sprayed easy start over the manifold and the induction pipework, no increase in the idle speed.

So I removed the throttle wheel and it idled at 600 rpm so with a little tweeking it now idles at 800 rpm :)

Took for a quick spin and ££££ me does it shift, the turbo seams to spools up quicker and it boost unto 22 psi :)

[Nealevo]

Great news mate, glad it's sorted

[Ettienne]

Sounds all good, I bet your well happy

[Ettienne]

How does it affect the turbo coming on boost

[oblark]

I Had the chance to dyno the car yesterday and was pleased with the results :)

http://i1067.photobucket.com/albums/u433/oblark/volvo%20850%20t5/M4%204%20flashing/20150905_162554.jpg (http://s1067.photobucket.com/user/oblark/media/volvo%20850%20t5/M4%204%20flashing/20150905_162554.jpg.html)

[Ettienne]

Wow good result, worth all the effort you've put in!

[oblark]

Update time,

I've started to get some knock when under WOT and boosting 16 psi @ 3180 (not bad for chocolate rods :) )

30000

So after have a little play around with the ignition table it looks like I reduced the knock.

30001

One thing I noticed was the STFT was swinging +/-15 on idle so I adjusted the injector settings and reduced it to +/- 3

30003

[Dangerous Dave]

Nice one :)

Hopefully mine will be ready to start once I have the wideband wired in, then the datalogging can begin :D

[MoleT-5R]

oh good an update at last, love this thread and there aren't many that I re-read so often, got get myself sorted over the christmas break so I can start logging olives progress, keep up the great work Rob.

[oblark]

After having the car MOT'd on monday I've keep getting the fault code of EFI-233.

30006

The first 2 are not worth worrying about :) but the EFI-233 adaptive idle air trim is the one that is putting the lambda light on. So with a bit of research on the internet I came across this.

"Diagnostic trouble code (DTC) information EFI-233

Substitute value idle air trim disabled fuel shut-off conditions changed output signals to the coils are regulated with a fixed value depending on the cause of the fault leakage diagnostic is disabled. Possible source
Signal too high: short-circuit to supply voltage in the signal cable defective idle air control (IAC) valve.
Signal too low: opening and closing coil signal cables short-circuited to each other defective fuse 11B/2 (1998-) open-circuit in power cable short-circuit to ground in signal cable defective idle air control (IAC) valve contact resistance in terminals.
Signal missing: open-circuit in signal cable defective idle air control (IAC) valve contact resistance in terminals.

Fault symptom[s] idling speed low or high."

As I'm not getting a signal to low/high or missing I'm little puzzled on what the fault could be as the IAC has been running trouble free years.

So rooting around in the Bin I came across a RPM/throttle angle boundary for ZWD off (IAC valve) as you can see in standard form the IAC is still in use upto 3390rpm and 47.30 degrees on the throttle. So I've lowered both values to 1980rpm and 19.98 degrees on the throttle.

30007
30008

I'll upload the new values on the ECU tomorrow and see what happens.

[oblark]

The new values for the IAC where uploaded to the ECU and the lambda light hasn't stayed off :)

As I've stopped the engine knock at 15 psi so I turned the boost up a bit :)

30011

30012

It looks like shes running a little rich with some slight knock, 22 psi @ 3690 rpm, not bad for standard rods.

I've adjusted the TCV load and duty cycle so the maximum boost comes in @ 4500 rpm

[oblark]

Did a bit more this weekend on getting the injectors dialed in.

Brown line - requsted AFR
Light blue line - actual AFR

At idle
30030

Driving at 40 mph
30031

Well atleast now I know what to do when I set up my 750cc injectors up :)

[Dream3r]

The new values for the IAC where uploaded to the ECU and the lambda light hasn't stayed off :)

As I've stopped the engine knock at 15 psi so I turned the boost up a bit :)

30011

30012

It looks like shes running a little rich with some slight knock, 22 psi @ 3690 rpm, not bad for standard rods.

I've adjusted the TCV load and duty cycle so the maximum boost comes in @ 4500 rpm

I would'nt push the timing much further and I'd reduce the boost a bit mate, rich and knocking isn't good at low RPM. I can't read your screens though but as you know you want a nice smooth torque curve on stock rods

[oblark]

I would'nt push the timing much further and I'd reduce the boost a bit mate, rich and knocking isn't good at low RPM. I can't read your screens though but as you know you want a nice smooth torque curve on stock rods

I was running the car on normal unleaded fuel, I'm now runnning on Esso super unleaded and not getting so much knock.

Here is ignition map I'm running/tweaking at the moment :)

30117

[Dream3r]

That's quite high lol does it achieve it?

95 octange is bad for these man I seen an R pull 15 degrees on 95 Ron lol.

Tesco 99 rules