Lean running on my V70 R solved, but see how.

[foammanmark]

any chance of a photo of this cos my v70r is having similar problem

Frankie, I've not managed to take the pics, as the weather is extreme, and I don't have anywhere sheltered close by. Hopefully I'll take them in the morn.

[T5frankie]

Frankie, I've not managed to take the pics, as the weather is extreme, and I don't have anywhere sheltered close by. Hopefully I'll take them in the morn.

ok no worries

[AndysR]

Here's my graph:-



Look forward to your comments.

Mark that is extremely lean, I wouldn't want to drive the car until you've had the afr's rechecked. It's entirely possible that the issue was simply down to the pipe not being connected to the FPR but it must have knocked or something to cause the glltch at around 3,000 rpm as the power drops almost like a mirror to the AFR's as if it's pulled back the fuel or something and then it trys again and then the power increases again. As Chris has said you really want to be seeing 11's or low 12's on your AFR's. Tbh I think you're lucky that the materials and standard piston design are of good quality for a standard OE piston as lesser engines would have melted under those AFR conditions...

[foammanmark]

Mark that is extremely lean, I wouldn't want to drive the car until you've had the afr's rechecked. It's entirely possible that the issue was simply down to the pipe not being connected to the FPR but it must have knocked or something to cause the glltch at around 3,000 rpm as the power drops almost like a mirror to the AFR's as if it's pulled back the fuel or something and then it trys again and then the power increases again. As Chris has said you really want to be seeing 11's or low 12's on your AFR's. Tbh I think you're lucky that the materials and standard piston design are of good quality for a standard OE piston as lesser engines would have melted under those AFR conditions...

Cheers for the above Andy. What I can say is that the car seems a lot better with that fpr vac hose reconnected, but ever since I had the Rica 310 map fitted in Summer, I have noticed a knocking or missing at approx. 3,500rpm. The injectors weren't changed and are just standard(whites?) as far as I know. It's Chad's old map, and I don't know what injectors he was running.

[AndysR]

Makes sense as you can see the missing/knocking in the power graph, I'd start by getting the injectors cleaned I know when my brother had his done it highlighted a fault with one of his whites and you wouldn't have known there was even a problem with it to drive it because obviously the car will try and compensate when on closed loop. The trouble with it compensating and adjusting the mixture via the readings from the lambda sensor is that its a collection of all 5 pots so the car has no way of knowing which one of the 5 is lean or rich so it will alter all of them to reach the desired afr level

Get the injectors checked/cleaned. FWIW my brothers S70R auto with whites and a Rica 304 was putting out very steady 11's on the AFR table when his was rolling roaded so they don't all naturally run lean

[foammanmark]

Makes sense as you can see the missing/knocking in the power graph, I'd start by getting the injectors cleaned I know when my brother had his done it highlighted a fault with one of his whites and you wouldn't have known there was even a problem with it to drive it because obviously the car will try and compensate when on closed loop. The trouble with it compensating and adjusting the mixture via the readings from the lambda sensor is that its a collection of all 5 pots so the car has no way of knowing which one of the 5 is lean or rich so it will alter all of them to reach the desired afr level

Get the injectors checked/cleaned. FWIW my brothers S70R auto with whites and a Rica 304 was putting out very steady 11's on the AFR table when his was rolling roaded so they don't all naturally run lean

So if I have an injector issue and with the fpr vac hose disconnected, there was no hope for me at Wakefield. I'll let you know how I go on.

[AndysR]

So if I have an injector issue and with the fpr vac hose disconnected, there was no hope for me at Wakefield. I'll let you know how I go on.

Well with no fuel enrichment as a result of the pipe being off yes you automatically qualify for a fail and coupled with a potential injector fault you might as well have not bothered.. lol

[foammanmark]

Well with no fuel enrichment as a result of the pipe being off yes you automatically qualify for a fail and coupled with a potential injector fault you might as well have not bothered.. lol

I'm going to try this fuel system cleaner to begin with:-

http://www.ebay.co.uk/itm/3106638447...84.m1497.l2649

Been looking at a Yank Volvo forum and it's highly rated on there.

[Rudeyboy18]

Cheers Mark, it's the maf-end I'm interested in really as that's the end I always see flapping.

Mine goes into the intake pipe. Theres a little nipple thing on the underside of the top of the Intake pipe. Mine goes in there...

[AndysR]

I'm going to try this fuel system cleaner to begin with:-

http://www.ebay.co.uk/itm/3106638447...84.m1497.l2649

Been looking at a Yank Volvo forum and it's highly rated on there.

Personally I think you're wasting your time with those sort of cleaners. Far better off removing the injectors and having them professionally cleaned and bench tested

[foammanmark]

Personally I think you're wasting your time with those sort of cleaners. Far better off removing the injectors and having them professionally cleaned and bench tested

Fair comment, but I'll run it through the car and see what happens. What I have done, is I've found my graphs from 2012, and the afr's look at lot better:-

[foammanmark]

Mine goes into the intake pipe. Theres a little nipple thing on the underside of the top of the Intake pipe. Mine goes in there...

Cheers for that, but I think it's the other end that we need to show. I presume that mine is right, as it certainly runs better now, but I haven't seen anyone else's car to compare it with.

[960kg]

Cheers for that, but I think it's the other end that we need to show. I presume that mine is right, as it certainly runs better now, but I haven't seen anyone else's car to compare it with.

Here is your MAF end....trying to find a pic. of the other end!!!!!

[T5frankie]

Here is your MAF end....trying to find a pic. of the other end!!!!!

have you been banned on voc then? lol

[graemewelch]

have you been banned on voc then? lol

no beating around the bush then

[stribo]

have you been banned on voc then? lol

The bloke's helping you out, and you're giving him grief.

[T5frankie]

The bloke's helping you out, and you're giving him grief.

i only asked a question , i wasnt giving anyone grief lol, i know where the other end of that pipe goes

[960kg]

i only asked a question , i wasnt giving anyone grief lol, i know where the other end of that pipe goes

........i know where the other end will be going lol

You are rude Frankie being so forward and blunt but i respect that ........and yes, i have

I was reinstated but the Mods did not even like my long but polite reply today....Sooooo they have installed the ban again until 2pm on the 1st of January........wow.....what can i do until then, well i have been busy on the other forums just generally trying to help in my own way but i am not posting any more on the VOC except my reinstating post.......sorry to say it will be polite but funny!

I cannot work or be involved with two faced members who run the place so i just take my labour elswhere, i am not sorry at all even after years of posting all things end so now is my time....shame really as i did like my name up in Pink lol

Forgot to say did you see Why?????.....look at the first thread http://www.volvoforums.org.uk/showthread.php?t=195448 or linky.......

[T5frankie]

........i know where the other end will be going lol

You are rude Frankie being so forward and blunt but i respect that ........and yes, i have

I was reinstated but the Mods did not even like my long but polite reply today....Sooooo they have installed the ban again until 2pm on the 1st of January........wow.....what can i do until then, well i have been busy on the other forums just generally trying to help in my own way but i am not posting any more on the VOC except my reinstating post.......sorry to say it will be polite but funny!

I cannot work or be involved with two faced members who run the place so i just take my labour elswhere, i am not sorry at all even after years of posting all things end so now is my time....shame really as i did like my name up in Pink lol

Forgot to say did you see Why?????.....look at the first thread http://www.volvoforums.org.uk/showthread.php?t=195448 or linky.......

notice you have that idiot strbryan having a go, does he get into an argument with everyone on there?

[merc85]

notice you have that idiot strbryan having a go, does he get into an argument with everyone on there?

strbryan is a strange character I was selling a car on ebay, he bidded it up so he could see what my reserve was, then retracted his bid lol bless him,