cylinder 1 misfire diagnostic error

mrogo44 · 05-31-2012, 10:47 PM

The other day I was on the road and I hit the throttle and the car started to stutter. The car almost seemed to start vibrating. The service engine soon light came on after a minute, so I pulled the car into a parking lot, turned it off for 5 minutes, then restarted it and it acted fine. I still took it directly to the dealer and they said since the light was not on they could not diagnose it at the time and said it was either an injector, a spark plug, or a spark plug coil, but it was a misfire in cylinder 1. I took the car home and the next day the same problem arose. Without turning the car off, I took it to the dealer and they said it was a misfire in cylinder 1 again, and they replaced the spark plug and spark plug coil in cylinder 1 and said it should be fine. I started driving afterwards and the problem came back again.
Does anyone know how to diagnose this problem or give any insight? Any help would be appreciated. Thanks for the help.

Thumperx · 05-31-2012, 11:03 PM

Interested due to I'm having the similar problem except mine is with the #6 cylinder. Also I just had valves cleaned and problem continues.

mrogo44 · 06-01-2012, 12:15 AM

what did your mechanic/dealership say about it?

rader1 · 06-01-2012, 12:29 AM

Sounds like it could be the injector. Either that or there may be some carbon deposit on the piston causing a hot spot or something along those lines

mrogo44 · 06-01-2012, 12:48 AM

Quote:

Originally Posted by rader1

Sounds like it could be the injector. Either that or there may be some carbon deposit on the piston causing a hot spot or something along those lines

Have you had similar problems?

Werked M fizzle · 06-03-2012, 07:41 PM

http://www.e90post.com/forums/showthread.php?t=700195

05-31-2012, 10:47 PM	#1
mrogo44 Enlisted Member 14 Rep 35 Posts Drives: test Join Date: Jan 2012 Location: test iTrader: (0)	cylinder 1 misfire diagnostic error The other day I was on the road and I hit the throttle and the car started to stutter. The car almost seemed to start vibrating. The service engine soon light came on after a minute, so I pulled the car into a parking lot, turned it off for 5 minutes, then restarted it and it acted fine. I still took it directly to the dealer and they said since the light was not on they could not diagnose it at the time and said it was either an injector, a spark plug, or a spark plug coil, but it was a misfire in cylinder 1. I took the car home and the next day the same problem arose. Without turning the car off, I took it to the dealer and they said it was a misfire in cylinder 1 again, and they replaced the spark plug and spark plug coil in cylinder 1 and said it should be fine. I started driving afterwards and the problem came back again. Does anyone know how to diagnose this problem or give any insight? Any help would be appreciated. Thanks for the help.
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05-31-2012, 11:03 PM	#2
Thumperx Major 88 Rep 1,404 Posts Drives: 335I coupe Join Date: Oct 2009 Location: SE Michigan iTrader: (77)	Interested due to I'm having the similar problem except mine is with the #6 cylinder. Also I just had valves cleaned and problem continues. __________________ Name: Blanca \| 07 E92 \| AW-Blk \| ZSP \| Alcon BBK \| M3 Bits \| VM RR Links \| Koni \| UUC Sways \| V5 \| Dinan CAI \| ETS IC \| Fge DV \| ER CP \| Cyba \| Raden. Exh \| Mod Step \| Trunk Drawer \| Perf LED Wheel \| Illum Dr Sills \| IS Shifter \| Parrot \| Philps D1S \| 6000k fog \| MTECH RR \| CSL Trunk \| Aero \| Roof Spoiler \| PSS on BBS RS-GT 19s
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06-01-2012, 12:15 AM	#3
mrogo44 Enlisted Member 14 Rep 35 Posts Drives: test Join Date: Jan 2012 Location: test iTrader: (0)	what did your mechanic/dealership say about it?
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06-01-2012, 12:29 AM	#4
rader1 Banned 71 Rep 2,197 Posts Drives: Cobb Stage 2+ 135i Join Date: Apr 2011 Location: Roanoke, VA iTrader: (0)	Sounds like it could be the injector. Either that or there may be some carbon deposit on the piston causing a hot spot or something along those lines
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06-03-2012, 07:41 PM	#6
Werked M fizzle Private 1 Rep 53 Posts Drives: E39 M5 Join Date: Sep 2010 Location: Queens NYC iTrader: (1)	http://www.e90post.com/forums/showthread.php?t=700195
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