BMW Questions? Ask a BMW Repair Expert for Answers.
Hi fuel trim bank 1 and bank 2 faults. It could be a mass air flow sensor you need a scan tool that can read the readings it is giving. A little more common is the air intake boot torn. Follow the tubes from the air box to the throttle body The last boot at the throttle body is the one that is normally torn look all around it even the bottom half of it very common. Thanks mike
I will check that out and get back to you
ok let me know