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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > HELP! Engine is Misfiring Stock Multiple Codes



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      01-26-2014, 09:37 AM   #23
Bme30
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plugs are not wet.....im looking into a valve cleaning as it has never been done. i have 50K miles so its about time. I don't think its the cam ledger bearings....at least i really hope not. I did run some logs and it looks like occasionally my car is over boosting between shifts (and not every time), so i need to figured out why.

Again this only happened when my car sees e85. Also ordered new plugs too.
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      01-26-2014, 03:09 PM   #24
dlbrooks18
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Try resetting adaptations:
-Air Control Adjustment
-Throttle Valve Adaptation
-Fuel/Air Adaptation
-Secondary Air Injection Adaptation

refer to this thread:

http://www.e90post.com/forums/showthread.php?t=386376
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      01-27-2014, 10:01 AM   #25
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Quote:
Originally Posted by dlbrooks18 View Post
Try resetting adaptations:
-Air Control Adjustment
-Throttle Valve Adaptation
-Fuel/Air Adaptation
-Secondary Air Injection Adaptation

refer to this thread:

http://www.e90post.com/forums/showthread.php?t=386376
all that has been done, just awaiting new plugs to see if this helps resolve my issues.

I have recently replaced all my fuel sensors, and the pumps. the help is about 1.5 years old (10K miles). It almost seems to happen during upshifting.
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