Quote:
Originally Posted by psmitty95
Way home from work made it misfire again and got P0304 cylinder 4 misfire. Seems like now cylinder 4 is the main culprit. Anyone think I should just do all 6 coil packs so I can rule those out completely like spark plugs? I swapped cyl 4 with cyl 3 and cyl 6 with cyl 2 coils packs about two weeks ago but it seemed like the misfire didn't follow the coil pack. As of now i'm pretty much willing to try anything though
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What are the conditions that cause the misfires? Higher RPM's? Cruising? When my coilpack failed, the car just misfired all the time and followed the cylinder when moved.
When I had sporadic misfires like yours, it was not the o2, but rather the injectors. But in my situation it was confined to ONE bank, where as yours jump between banks.
I think the only thing left to try is to replace all 6 injectors if you have not already. When I had a similar issue, I replaced all 3 injectors in the mis-firing bank and my misfires have yet to return.
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2007 E92 6MT SGM: MusicarNW Level 2, Procede Rev 2.5, FFTEC/Vishnu LPFP with Flexfuel Sensor and Flash, M3 Offset V701's, WaveTrac LSD, Michelin PSS, Downpipes, M3 Control Arms, TCKline D/A Suspension, LCI Tail lights, Lux AE's, ER Charge Pipe, DCI's, Mtech Front and Rear, M3 Sideskirts, HPF Stage 1 Clutch