BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Dreaded 30BB, need direction

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      06-08-2021, 08:55 AM   #1
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Dreaded 30BB, need direction

I had my car shut down on me a couple months ago and hasnít ran since. Leaving for work one morning and cranked my car only to have it start shaking violently. Iíve ran my codes and had gotten the dreaded 30BB as well as misfire on 4,5, and 6. Now hereís the issue Iím running into: the injectors, coil packs, and plugs are all new and I just had all 6 mosfets (msd80) replaced for good measure. Ran the codes again and no more misfires but 30BB still present and car still idles rough as if bank 2 is still down but doesnít give me those codes anymore. Iím at a complete loss at this point. Any help/direction would be very very much appreciated.
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30bb, bank 2, dme, e90, mosfet

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