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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 > Shaking/limp mode



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      06-23-2012, 06:08 PM   #1
Chrisred
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Just changed ALL my coils and plugs. Had misfires on 4,5 n 6 cylinders. I would get limp mode and some shaking if car was "cold".

Unfortunately it still does the same thing. When up to temp the car is fine.

Plugs were dirty as hell. Also, the holes where plugs go into had a black residue around circumference. Either fuel or carbon???

I also get a bunch of lambda codes so I'm guessing it's the o2 sensors on bank 2 that cause misfires/limp.

Btw I don't have any misfires on cold starts.

Any feedback will be appreciated.
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      06-23-2012, 06:50 PM   #2
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Always warm up your car before doing WOT pulls
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      06-23-2012, 06:55 PM   #3
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+100.. Really dont get how people can treat their cars like shit and go WOT cold...
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      06-23-2012, 06:58 PM   #4
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why would u WOT on a cold car... ur gonna screw up more than ur spark plugs, injectors and coils....
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      06-23-2012, 07:02 PM   #5
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Well I didn't mean going WOT right away after starting off. Meant like 5-10 min after driving.

But while driving on a cold start (oil temp less than 210F) I get shakes/ hesitations.
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      06-23-2012, 07:32 PM   #6
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Make sure your o2 sensors are in the correct dp if you have any. This cleared my lambda codes and shaking. Remember, gray wired one goes in the dp on the passenger side and the black wired one goes into the driver side dp. Good luck.

Here are the codes I had.
2C7F-Lambda probe after catalytic converter 2, trimming control
2C6A-Lambda probe after catalytic reversed
2C6C-Lambda probe after catalytic converter 2, system check
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      06-23-2012, 07:41 PM   #7
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Quote:
Originally Posted by Manny_World
Make sure your o2 sensors are in the correct dp if you have any. This cleared my lambda codes and shaking. Remember, gray wired one goes in the dp on the passenger side and the black wired one goes into the driver side dp. Good luck.

Here are the codes I had.
2C7F-Lambda probe after catalytic converter 2, trimming control
2C6A-Lambda probe after catalytic reversed
2C6C-Lambda probe after catalytic converter 2, system check
Hey thanks a lot bro. It's prob that. I have similar codes.
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      06-24-2012, 01:46 AM   #8
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Quote:
Originally Posted by Chrisred View Post
Hey thanks a lot bro. It's prob that. I have similar codes.
No problem.
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