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Misfire won’t go away on cylinders 1
I have a 07 335i with basically everything done to prevent misfires but still I have a bad one. I have all index 12 injectors which have less than 2000 miles on them. Precision racework coils and coil pack, new.022 gapped 2step colder plugs, and new seals on the injectors. No matter what I do the car has a bad misfire in cylinder 1 even moving injectors and recoding them or moving coils has no effect. The car idles very rough and you can hear it popping at idle and breaking up under load. Mosfets have been done aswell and I don’t think I saw any blow by on the injector.
I checked the voltage when the car was on from the engine terminals and read 13.9-14.3 volts.
If anyone has any ideas on what I should triple check please let me know
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