CEL comes and goes!!! WTF HELP!!!

reggiecmah · 02-01-2011, 01:36 AM

Jan 30th, 2011

Car has a CEL.. and it bogs out almost... and hesistates hardcore...

when i turn the car off and back on right away.. CEL is gone and car is normal unless i give it so more has to accelerate harder...the CEL comes back and let the bogging begin once again...

with my exhaust setup.. the car sounds like a straight piped subaru.... sounds nice.. but sounds like a miss firing... and power is like.. gone...

let me know if anyone has any insight! car has no warrenty.. and its booked for a appointment at Calgary BMW on thursday .... FML

E90slow · 02-01-2011, 06:01 AM

sounds like a coil

kuvesh · 02-01-2011, 07:03 AM

i had problems with my solenoids. on 50%+ accelertion got "engine malfunction, reduced power" message on i-drive.

replaced solenoids and problem fixed.

guerilla twang · 02-01-2011, 11:23 AM

Coil, or maybe MAF?

e90pilot · 02-01-2011, 11:58 AM

Sounds like ignition. Under load you get the hesitation. My friend's E39 540i did the same thing. Turned out to be a bad coil. It still functioned at low loads but couldn't genetrate a large enough current to get the spark plug going. The coil turned white on the top. That's how we found it.

BMWsky · 02-01-2011, 02:13 PM

I'd say scan for codes first. If you don't have a code reader, take it to a place like Autozone and have them do it.

reggiecmah · 02-04-2011, 02:18 AM

Turns out of my problem was quite simple.. but costly

my car was having a misfire, and hesitation whenever I decide to give it more gas.

and the problem was a bad ignition coil...

no warrenty sucks and had to eat the bill =(

e90pilot · 02-04-2011, 03:04 AM

You can just intall them yourself. It's really easy. The only trick is finding which coil died.

reggiecmah · 02-05-2011, 04:38 AM

hahaha well i will consider it next time, bmw when they scanned the key fob it tells you exactly where the misfire is coming from soo they switched the coils up and the misfire changed, so that is how they verified which coil was messed.

02-01-2011, 01:36 AM	#1
reggiecmah the.tsukinousagi 118 Rep 1,538 Posts Drives: 2015 F82 M4 Join Date: Jan 2008 Location: Vancouver, BC iTrader: (13) Garage List 2007 E92 328xi [0.00]	CEL comes and goes!!! WTF HELP!!! Jan 30th, 2011 Car has a CEL.. and it bogs out almost... and hesistates hardcore... when i turn the car off and back on right away.. CEL is gone and car is normal unless i give it so more has to accelerate harder...the CEL comes back and let the bogging begin once again... with my exhaust setup.. the car sounds like a straight piped subaru.... sounds nice.. but sounds like a miss firing... and power is like.. gone... let me know if anyone has any insight! car has no warrenty.. and its booked for a appointment at Calgary BMW on thursday .... FML
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02-01-2011, 06:01 AM	#2
E90slow Private First Class 19 Rep 170 Posts Drives: 328i Join Date: Nov 2010 Location: GA iTrader: (1)	sounds like a coil
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02-01-2011, 07:03 AM	#3
kuvesh Lieutenant 26 Rep 513 Posts Drives: e92 335i juiced Join Date: Jun 2008 Location: singapore iTrader: (1)	i had problems with my solenoids. on 50%+ accelertion got "engine malfunction, reduced power" message on i-drive. replaced solenoids and problem fixed. __________________ HAMANN FRONT APRON, SIDES, ROOF SPOILER & QUAD DIFFUSER \| VORSTEINER VRS TRUNK \| CSC3 ON 19” ADVAN RS \| BREMBO GT BBK \| BASTUCK QUAD \| KW V2 \| JB3 v1.3s beta \| BMW PERFORMANCE STEERING WHEEL \| M3 SIDE MIRRORS \| M5 SMG SHIFT KNOB \| BLACKOUT GRILLS \| PARTIALLY SMOKED LIGHTS \| WINDOW TINT
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02-01-2011, 11:23 AM	#4
guerilla twang I do my crosswords in pen. 17 Rep 751 Posts Drives: OEM+ 330i Join Date: Feb 2010 Location: KCMO iTrader: (6)	Coil, or maybe MAF? __________________ GRUPPE TITAN Midwest
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02-01-2011, 11:58 AM	#5
e90pilot Freight Dawg 102 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	Sounds like ignition. Under load you get the hesitation. My friend's E39 540i did the same thing. Turned out to be a bad coil. It still functioned at low loads but couldn't genetrate a large enough current to get the spark plug going. The coil turned white on the top. That's how we found it. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
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02-01-2011, 02:13 PM	#6
BMWsky Major 24 Rep 1,244 Posts Drives: 335i Join Date: Dec 2010 Location: Webster NY iTrader: (1)	I'd say scan for codes first. If you don't have a code reader, take it to a place like Autozone and have them do it.
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02-04-2011, 02:18 AM	#7
reggiecmah the.tsukinousagi 118 Rep 1,538 Posts Drives: 2015 F82 M4 Join Date: Jan 2008 Location: Vancouver, BC iTrader: (13) Garage List 2007 E92 328xi [0.00]	Turns out of my problem was quite simple.. but costly my car was having a misfire, and hesitation whenever I decide to give it more gas. and the problem was a bad ignition coil... no warrenty sucks and had to eat the bill =(
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02-04-2011, 03:04 AM	#8
e90pilot Freight Dawg 102 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	You can just intall them yourself. It's really easy. The only trick is finding which coil died. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
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02-05-2011, 04:38 AM	#9
reggiecmah the.tsukinousagi 118 Rep 1,538 Posts Drives: 2015 F82 M4 Join Date: Jan 2008 Location: Vancouver, BC iTrader: (13) Garage List 2007 E92 328xi [0.00]	hahaha well i will consider it next time, bmw when they scanned the key fob it tells you exactly where the misfire is coming from soo they switched the coils up and the misfire changed, so that is how they verified which coil was messed.
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