The vehicle was fine all along. The other night was driving and it started running rough... Pulled over and restarted it and was fine..
All these codes in the car even after resetting:
P2187 - lean at idle bank 1
P2189 - lean at idle bank 2
P0300 - random / multiple misfire detected
P0301 - Cylinder 1 misfire
P0302 - Cylinder 2 misfire
P0303 - Cylinder 3 misfire
P0304 - Cylinder 4 misfire
P0305 - Cylinder 5 misfire
P0307 - Cylinder 7 misfire
I looked around for vacuum leaks already and everything seems ok. There is however a small plastic tube not connected to anything by the driver side valve cover.
CB01718 850i Lagunengruen Metallic / Silbergrau Leder
Check what you maf is reading, and that small plastic tube should be the breather hose for the front diff.
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The issue came back again. Seems like only happens in extreme cold. The MAF was getting around 9g/s at idle I think. About 30-60+ at wot.
Should I try unplugging the MAF when it's idling rough?
Same codes.
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