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BMW 3-Series (E90 E92) Forum
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need some help with codes
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| 12-07-2012, 11:24 PM | #1 |
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Second Lieutenant
 
15
Rep 294
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need some help with codes
Okay so recently I decided to sell my VRSF downpipes and I put my stock downpipes back on, and also removed JB4 for a water pump replacement at the dealer.
Ever since the stock downpipes went back in I've been having rough idle and several different codes. Hopefully someone can enlighten me. 2c7e Lambda probe behind catalytic converter, trimming control 2C6B Lambda probe behind catalytic converter, system check 2C7F Lambda probe behind catalytic converter 2, trimm control also the regular 2aaf Did I switch my rear o2 sensors around or something?
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JB4 and other stuff
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| 12-07-2012, 11:39 PM | #2 |
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Captain
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Rep 961
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You've got the rear O2 sensors reversed.
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| 12-08-2012, 12:02 AM | #3 | |
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Second Lieutenant
15
Rep 294
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Quote:
The front turbo DP has black wires for the front and rear o2 sensors. The rear turbo DP has grey wires for the front and rear o2 sensors. This is the way mine are setup now. I did recently have to replace one of the o2 sensors (rear o2 front turbo DP) because the wires were frayed. Now I'm confused 
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