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      03-27-2011, 01:27 AM   #2
Freight Dawg
e90pilot's Avatar

Drives: E90 325i
Join Date: Jul 2005
Location: Oakland, CA

iTrader: (3)

You have a misfire. Don't drive your car because you can damage your cats and those are really expensive. You need to have the car scanned and troubleshot. Most likely it's a dead coil. The way a shop will troubleshoot this is a mechanic will scan the car and see which cylinder is misfiring. Then he will swap coils with another cylinder to see if the problem follows the coil to another cylinder. If it doesn't they'll try swapping something else.
'06 Arctic Metallic 325i | Sport Package | 6MT | Dinan Stage III suspension | Dinan exhaust | 330i manifold swap! Click here! | Active Autowerke tune | 135i Brake Calipers | Deiselboost caliper brackets | E46 M3 front rotors