my issue is this, i have a 2006 x3. 3lt engine, i get the code misfire cylinder 3. i listen to the number 3 injector and it was not making noise. i replaced injector and was still getting the code. when i start the car the injector works for about 30 seconds then stops. once it stops i can restart the car and it will work for 30 seconds, any ideas? thanks
The engine computer (DME in BMWspeak) is shutting off the injector. Basically, the DME provides the ground signal to the injector to open it. There’s an underlying problem. The injector’s behavior is a symptom. Rescan the DME with a good code reader.
I figured it was a software issue, i will try that, thank you
It is a lot cheaper to have a experienced technician diagnose the vehicles problem than it is to throw parts randomly at the vehicle hoping to get lucky.
Tenured Automotive Service Professional - Avid BMW Enthusiast
Swap the plug to cylinder #1 and coil to cylinder #6.
This way you can discern whether it is the plug or the coil causing the misfire,
leading to the fuel cut-off.
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