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      12-02-2012, 10:58 PM   #24
Second Lieutenant
Drives: E90 335i
Join Date: Apr 2010
Location: CA

Posts: 287
iTrader: (4)

Originally Posted by robc1976 View Post
I had misfires quite a bit asociated with maxed out trims, fuel pressure diving exspeacialy when I went to RB's. Installed new O2's and codes went away. After that I installed the cobb AP with BMS backend flash wich really smoothed out things. But the culprit for my fuel mixture codes where the O2's (primary).
I see. Hopefully the o2s aren't too painful to replace.
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