Hello everyone I have a 2012 750i that I recently had new heads put on. I start the car and have 5 codes and they are. (150402 Ignition, cylinder 3 combustion time too short) (140402 misfire cylinder 4 exhaust gas damaging after startup) (142002 Misfire tank fill level too low) (140801 combustion misfire, cylinder 8 injection will be switched off) (140601 misfire cylinder 6 injection shutdown) Car will start but idles like crap. Any help/advice will be greatly appreciated!
No answer so far, have swapped coils and injectors around and misfire does not jump.
Why were new heads required? Was there cylinder or head damage? Did you use new or used heads? What index are your injectors? You may need to do a compression or leakdown test.
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