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      12-01-2014, 11:21 AM   #3
vapore0n
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Drives: 2010 335i
Join Date: Jul 2011
Location: MA

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Have a look here
http://www.bimmerfest.com/forums/sho...d.php?t=422304

Based on the thread, it could be the O2 sensor, a exhaust leak near it, the MAF sensor.

I would look into exhaust leaks first before replacing any sensor.
Appreciate 0