Random/multiple misfire [Archive] - Bimmerfest - BMW Forums

: Random/multiple misfire

03-29-2008, 10:31 PM

I got the CEL on after putting around, accelerating hard at random. I heard what sounded like a backfire. Following the backfire and subsequest CEL, the engine stalled as I rolled to a stop. I turned it over and it fumbled around until a couple of cylinders came to life. THis happened a couple of blocks from home and I took it easy getting it home. A week passed since I haven't had time to do anything with it. Tonight I connected a code reader and got the following codes prior to clearing them. I took her out again and ran her the same as I did when the CEL came on but no problems tonight. THese don't have self healing powers; does anyone have any ideas?

P0300 Random/Multiple Cylinder Misfire Detected
P0301 Cylinder 1 Misfire Detected
P0302 Cylinder 2 Misfire Detected
P0304 Cylinder 4 Misfire Detected
P0306 Cylinder 6 Misfire Detected


04-06-2008, 03:58 PM
Might be time to replace your plugs and/or coils...