Misfire help

onefastman · 03-28-2010, 08:23 PM

Yesterday I went for a 250 mile drive and ram map9 with meth and everything was fine, actually better than fine. I started it up today, cleared the 2c31, drove a few miles, shut it off, drove maybe 5 miles, didnt excede 4000rpm and all of a sudden at cruse I got misfires on cylinder 6. It went into limp mode and I cleared them again and again, nothing. I nursed it into a gas station and could hear the engine running poorly and see it vibrating unusually. I was able to get it home (8 miles) and get a few logs on the way back. I could drive it with out it going into limp as long as I kept it out of boost. Please help me asap becasue it is not driveable.

Current Shadow Fault Codes

29D2:
29D2 Misfirings, cylinder 6
Error will cause a warning light
Error is currently present
Test conditions have not been completed
Signal or value below threshold

FREEZE FRAME INFORMATION
Event 1Odometer 23832kms 14808miles
Engine temperature 96.75 °C
load value for misfire detection 15.63 %
Engine speed 2,976.00 rpm
Lambda integrator group 2 0.78 %

BoostedCosta · 03-28-2010, 08:26 PM

did you try going this on a lower map? if that doesnt work go to map 0 if that doesnt work then just take it to the dealership

onefastman · 03-28-2010, 08:30 PM

it is the same with the jb3 off and i have no warranty so a diy would be best

onefastman · 03-28-2010, 08:40 PM

The plugs are also new

BoostedCosta · 03-28-2010, 08:43 PM

will it go inot limp at 1lb of boost? or does it go to limp when maybe the meth sprays? try disconting the meth and do some wot pulls see if u get codes/limps

NiVeDh · 03-28-2010, 08:47 PM

Could be a faulty fuel injector.

Mike@N54Tuning.com · 03-28-2010, 08:51 PM

Quote:

Originally Posted by NiVeDh

Could be a faulty fuel injector.

+1

Its usually the plugs or injector. Are you getting any fuel pump/pressure codes?

Mike

onefastman · 03-28-2010, 09:00 PM

I get 2aaf codes sometimes but it is at random (every 300 miles or more). It is misfiring at idle and meth? I have no meth

onefastman · 03-28-2010, 09:53 PM

I talked to terry and some others and the concincious seems to be for me to swap plugs/coils and see if the problem is on the same cylinder or not. I hope its not because a coil is a lot cheaper than a injector/calibration.

onefastman · 03-28-2010, 11:31 PM

I went and took another look at it tonight. I let it warm up for a minute while i felt the engine to see if it vibrated like it was before and it seemed ok. I took it for a drive and let it warm up before getting on it and there were no stutters at which point I turned on the jb3 and really got on it, no problems. Then I turned on the meth and realized what a difference it makes in power in the higher up maps, still no issues. I cruse a bit more until it is at normal operating temps and runs fine. I am relieved but very confused... Maybe the gods didnt want me to go to tennis tonight or something lol

03-28-2010, 08:23 PM	#1
onefastman Major General 159 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	Misfire help Yesterday I went for a 250 mile drive and ram map9 with meth and everything was fine, actually better than fine. I started it up today, cleared the 2c31, drove a few miles, shut it off, drove maybe 5 miles, didnt excede 4000rpm and all of a sudden at cruse I got misfires on cylinder 6. It went into limp mode and I cleared them again and again, nothing. I nursed it into a gas station and could hear the engine running poorly and see it vibrating unusually. I was able to get it home (8 miles) and get a few logs on the way back. I could drive it with out it going into limp as long as I kept it out of boost. Please help me asap becasue it is not driveable. Current Shadow Fault Codes 29D2: 29D2 Misfirings, cylinder 6 Error will cause a warning light Error is currently present Test conditions have not been completed Signal or value below threshold FREEZE FRAME INFORMATION Event 1Odometer 23832kms 14808miles Engine temperature 96.75 °C load value for misfire detection 15.63 % Engine speed 2,976.00 rpm Lambda integrator group 2 0.78 % __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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03-28-2010, 08:26 PM	#2
BoostedCosta SUPERMAN 121 Rep 3,171 Posts Drives: AW e90 335i M-Sport Join Date: Jul 2008 Location: nj iTrader: (6)	did you try going this on a lower map? if that doesnt work go to map 0 if that doesnt work then just take it to the dealership __________________ MODS: JB3 18ohm \| AR Design Catlles Downpipes \| CDV Delete \| Clutch Masters FX400 \| ZEX Nitrous Kit \| Devils Own Methonal Kit \| VMR V701 (Matte Black) \| H&r Race Springs\| BMW Perf Grilles\|
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03-28-2010, 08:30 PM	#3
onefastman Major General 159 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	it is the same with the jb3 off and i have no warranty so a diy would be best __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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03-28-2010, 08:40 PM	#4
onefastman Major General 159 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	The plugs are also new __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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03-28-2010, 08:43 PM	#5
BoostedCosta SUPERMAN 121 Rep 3,171 Posts Drives: AW e90 335i M-Sport Join Date: Jul 2008 Location: nj iTrader: (6)	will it go inot limp at 1lb of boost? or does it go to limp when maybe the meth sprays? try disconting the meth and do some wot pulls see if u get codes/limps __________________ MODS: JB3 18ohm \| AR Design Catlles Downpipes \| CDV Delete \| Clutch Masters FX400 \| ZEX Nitrous Kit \| Devils Own Methonal Kit \| VMR V701 (Matte Black) \| H&r Race Springs\| BMW Perf Grilles\|
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03-28-2010, 08:47 PM	#6
NiVeDh Major General 422 Rep 8,003 Posts Drives: '08 E90 335i, '99 E36 M3 Join Date: Apr 2009 Location: Houston, TX & Atlanta, GA iTrader: (132) Garage List 2008 BMW 335i Sedan [8.66]	Could be a faulty fuel injector.
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03-28-2010, 09:00 PM	#8
onefastman Major General 159 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	I get 2aaf codes sometimes but it is at random (every 300 miles or more). It is misfiring at idle and meth? I have no meth __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
	Appreciate 0 Quote

03-28-2010, 09:53 PM	#9
onefastman Major General 159 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	I talked to terry and some others and the concincious seems to be for me to swap plugs/coils and see if the problem is on the same cylinder or not. I hope its not because a coil is a lot cheaper than a injector/calibration. __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
	Appreciate 0 Quote

03-28-2010, 11:31 PM	#10
onefastman Major General 159 Rep 5,689 Posts Drives: 2009 135i 2011 e92m dct Join Date: Sep 2009 Location: Earth iTrader: (15)	I went and took another look at it tonight. I let it warm up for a minute while i felt the engine to see if it vibrated like it was before and it seemed ok. I took it for a drive and let it warm up before getting on it and there were no stutters at which point I turned on the jb3 and really got on it, no problems. Then I turned on the meth and realized what a difference it makes in power in the higher up maps, still no issues. I cruse a bit more until it is at normal operating temps and runs fine. I am relieved but very confused... Maybe the gods didnt want me to go to tennis tonight or something lol __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
	Appreciate 0 Quote