R owners

[volvokid]

Ok some of you know I have never got my ams to run on my car. I have noticed for a while my car has a noticeable flat spot at 2400 rpm.under light acceleration, I mainly notice it in 2nd gear, I wonder if this has to do with my ams not running. Does anyone else's do this at that revs? My car is running standard just now, no ams.

[LeeT5]

Martyn

I too had a flat spot that was, to be honest, a little intermittant. I would say, more hesitant than flat spot. Anyway, this was pre AMS and it turned out to be a faulty Fuel pressure sensor. It was just like a flat spot but quite intermittant. I too noticed in second gear and sometimes third, thou gears have nothing to do with it mate. I put up with this random fault for about 6 months and never really got to the bottom of it until it finally broke down altogether. After driving to the dealer they diagnosed the fault. Apparantly the sensor voltage was too high and made the car feel like it missed a beat. Was the ECU briefly putting the car into limp mode, hense the hesitation.

I can tell you one thing, after the sensor was fitted, boy did i notice the difference. It drove like a new car.

I do know they are a commaon fault on the P2 and they are very easy to fit and not expensive. Worth considering mate. I know you've already changed your MAF so it's the next probable thing to cause symptoms that you are experiencing.

[volvokid]

Nice one Lee, it is exactly as you describe. Will get it changed once the bank balance improves slightly

[Pauld]

Get the part from land rover and save about £130.00

10 minutes to swop.

[LeeT5]

Part only costs £151, so you telling me it's £20 from land rover?

[Harvey]

Have a read of this link.
http://forums.swedespeed.com/showthread.php?149678-How-to-replace-fuel-pressure-sensor-for-CEL-P0193
Part no as well. £44 list price.

[LeeT5]

Have a read of this link.
http://forums.swedespeed.com/showthread.php?149678-How-to-replace-fuel-pressure-sensor-for-CEL-P0193
Part no as well. £44 list price.

Interesting. I wonder how many other parts on our cars, particularly V70R/S60R comes from other manufacturers at massively deflated prices?
I think a list would be in order.

[volvokid]

Wow Thank very much for that. That's a boost.

[Jimmie]

Kid;Give greenbank 4X4 a phone .Might be easier to go in past as they got fed up answering the phone to garages that just wanted advice.
They are the kings of Land Rover in aberdeen not Town & County the main dealers.

[volvokid]

I thought you might suggest them I will go in past, won't be today though, I don't have a car at work

[Pauld]

http://www.vpcuk.org/forums/showthread.php?42439-It-pays-to-do-your-homework!&highlight=pauld

[graemewelch]

Ive got a spare one you can try if you like. drop me a pt if want to try it.

[volvokid]

Well after Graeme kindly loaned me a new sensor I fitted it along with my AMS took the car out and it started it's usual rubbish. Going to fit the old box back on and see if the stuter has gone.

[jdavis]

What is this ams lark?

[volvokid]

It's just a induction kit

[jdavis]

ahhh, seems strange to have problems after fitting just and induction kit. have you tried the old disconnect the battery then reconnect after 10 minutes in the hope that it resets the ecu? is it definately the same part number of those others have fitted?

[volvokid]

Yip it's the IPD one, they are all the same, I've tried battery resets, changed my MAF, and TCV now the fuel sensor. Still no joy. Volvo can't diagnose it they just tell me it's the after market part that's causing it.

[LeeT5]

What is this ams lark?

This is my AMS and the kit that Martyn is talking about:

http://i36.photobucket.com/albums/e11/LeeT5/Phase%202%20V70R%20AWD/IMG_0613.jpg

This is the car with the standard air box:

http://i36.photobucket.com/albums/e11/LeeT5/Phase%202%20V70R%20AWD/Photo0145.jpg

[LeeT5]

Yip it's the IPD one, they are all the same, I've tried battery resets, changed my MAF, and TCV now the fuel sensor. Still no joy. Volvo can't diagnose it they just tell me it's the after market part that's causing it.

Mate, ive told you before and i'll tell you again....IT'S NOT YOUR AMS CAUSING THE PROBLEM. :nono:

Go to your dealer, give them my phone number and i will bloody well tell them myself!! I've had my AMS on my car now nearly 18 months and ALL my problems that manifested themselves after fitting the AMS have now been sorted.
I'll list them for you;
1. MAF
2. Fuel pressure sensor
3. TCV
4. Clutch (yes, clutch. Mine was slipping under high torque at around 3 - 4,000 rpm when giving it the beans and i too thought it was the TCV mucking about!)

Now all these problems have been replaced, fixed she now runs sweet!

The AMS has Bu g ger all to do with any problems your getting mate, it just causes problems to manifest themselves because of the higher air flow. Any problem on your car will always be disguised until you start modding and making things go faster.

I had a knackered MAF for 4 months but didn't know. Just put up with the intermittant problems and thought they would go away. You gotta trust me on this one fella, else your never fix your car!

Take it back to the dealer, tell them to look harder and stop fobbing you off. If you have a problem with your car its NOT the AMS. It will be something not right else where. There are other ppl on this site with AMS's and their car run sweet too!

If i'm wrong them you can have my car F.O.C. (you gotta collect it thou) :)

[volvokid]

I know it's not the AMS Lee as we have spoken about before it's just finding the faulty part in my engine that we can't find

[Jimmie]

I know it's not the AMS Lee as we have spoken about before it's just finding the faulty part in my engine that we can't find


Did your main dealer not talk to one of the top mechanics in the UK that work on the Rs and did everything they were told and it still did not cure the problem?
Paying people to look at the car with no benefit is very frustrating for you with all the suggestions and still the fault persists.
Anyone got any other ideas to help VK out?

[stribo]

Have you tried just plugging an OBDII reader in, and see if that comes up with anything?

[volvokid]

Did your main dealer not talk to one of the top mechanics in the UK that work on the Rs and did everything they were told and it still did not cure the problem?
Paying people to look at the car with no benefit is very frustrating for you with all the suggestions and still the fault persists.
Anyone got any other ideas to help VK out?

Yip they called MRG. It's not a simple 5 minute drive for me to my dealer, it's a 2 hour drive plus main dealer prices.

[volvokid]

Have you tried just plugging an OBDII reader in, and see if that comes up with anything?

It only ever flags up the MAF code

[LeeT5]

I know it's not the AMS Lee as we have spoken about before it's just finding the faulty part in my engine that we can't find

If there is a fault it will be there with or without the AMS. Go to a different dealer or find an Indy that has Volvo specialists and get them to look. Best thing to do is to fit the AMS, that way, the fault will be more noticeable. Any garage with the correct software should be able to run fuel trim or 'Live readings' whilst driving. You could drive the car whilst the mechanic sits next to you and does his stuff on the laptop. You can tell him when it misbehaves and he can tell you whats happening from the readings he is getting. If its a misfire or TCV, MAF fault or Fuel pressure sensor it will show up. WHat about the fuel pressure regulator?? Coil?? Faulty VVT sensor??

get me on a flight to Scotland and i'll bloody diagnose it myself!

[LeeT5]

It only ever flags up the MAF code

Can you be more specific? MAf voltage too high or too low??

[volvokid]

Can you be more specific? MAf voltage too high or too low??

I just pulled my codes and this is what it says.
http://i252.photobucket.com/albums/hh9/volvokidv70r/Screenshot_2012-09-26-18-57-22.png

[LeeT5]

I just pulled my codes and this is what it says.
http://i252.photobucket.com/albums/hh9/volvokidv70r/Screenshot_2012-09-26-18-57-22.png

Ok Martyn. I'm 99% certain your car has an Air leak on the vacuum side. I have also spoken to a good garage who told me exactly the same thing (i never divulged my opinion). I have forwarded your photobucket picture to another good friend of mine who runs his own garage and i will let you know what he says. I'm yet to speak to my local dealer and i will also be speaking to Stuart Williams of SWAutos.

Can you just confirm that you have replaced the MAF and Fuel pressure sensor with brand new components?

[LeeT5]

Found this:


Default P2188 = ECM-262A Long-term fuel trim Lower limit

Condition

The control module receives information from the heated oxygen sensor (HO2S) about the fuel / air mixture when idling at both the lower and upper part-load range. If the fuel / air mixture deviates from λ=1, the short-term fuel trim will compensate for this by adjusting the injection time so that λ=1 is achieved. When the short-term fuel trim makes an adjustment, the integrator median must be adjusted by the long-term trim. Diagnostic trouble code (DTC) ECM-262A will be stored when the long-term trim must be adjusted almost to maximum in the idle range.


Substitute value

none


Possible source

Upper limit:
-intake air leakage **
-exhaust system air leakage
-defective heated oxygen sensor (HO2S)

Lower limit:
-intake air leakage
-high fuel pressure
-leaking injectors
-defective mass air flow (MAF) sensor
-contaminated engine oil
-oil level too high
-defective heated oxygen sensor (HO2S)

** Exactly what i said!

[volvokid]

Ok Martyn. I'm 99% certain your car has an Air leak on the vacuum side. I have also spoken to a good garage who told me exactly the same thing (i never divulged my opinion). I have forwarded your photobucket picture to another good friend of mine who runs his own garage and i will let you know what he says. I'm yet to speak to my local dealer and i will also be speaking to Stuart Williams of SWAutos.

Can you just confirm that you have replaced the MAF and Fuel pressure sensor with brand new components?
Thanks for this Lee. The MAF is new, but the fuel pressure sensor is a working one I have a shot of from Graeme

[volvokid]

Found this:


Default P2188 = ECM-262A Long-term fuel trim Lower limit

Condition

The control module receives information from the heated oxygen sensor (HO2S) about the fuel / air mixture when idling at both the lower and upper part-load range. If the fuel / air mixture deviates from λ=1, the short-term fuel trim will compensate for this by adjusting the injection time so that λ=1 is achieved. When the short-term fuel trim makes an adjustment, the integrator median must be adjusted by the long-term trim. Diagnostic trouble code (DTC) ECM-262A will be stored when the long-term trim must be adjusted almost to maximum in the idle range.


Substitute value

none


Possible source

Upper limit:
-intake air leakage **
-exhaust system air leakage
-defective heated oxygen sensor (HO2S)

Lower limit:
-intake air leakage
-high fuel pressure
-leaking injectors
-defective mass air flow (MAF) sensor
-contaminated engine oil
-oil level too high
-defective heated oxygen sensor (HO2S)

** Exactly what i said!
Volvo have had the car on the smoke tester and said the only leak was pre MAF

[Jimmie]

Volvo have had the car on the smoke tester and said the only leak was pre MAF
And the dealer checked and double checked a few times for air leaks elsewhere as was advised by MRG?
How many miles do you do before the engine starts misbehaving?

[volvokid]

After I fit the AMS I usually get about 50 miles before it acts up

[volvokid]

Well I've been on the phone to several garages and 2 tuners and not one can do a smoke leak test, I've asked the Mrs about going to England and that's a no go

[LeeT5]

Hi Martyn. I know weve spoken on the phone at length about this. If you can't come to England then why can't you drive to your dealer and by the time you get there the fault should have manifested itself...yes? Warn the dealer that youre driving to them and on your arrival you would request that a senior technician comes straight out to the car for a roadtest and plug in DICE, before you switch the car off. That way, they should be able to accuratley diagnose the fault. Does that not sound feasible to you?? Given the trouble youve had i would be expecting your local dealer to bend over backwards at this stage to help you.

[volvokid]

Hey Lee I've been working away so havnt had a chance to go any further with this. I don't think the dealer will be of much help tbh, I think they are fed up of it, they have seen the fault with there own eyes and are not willing to go much further with it, as far as they are concerned they have done everything they can.