Having a little problem with decoding my code reader tool, how do you tell which exaust valve(oxygen sensore) is bad, i believe there is more then one. the tool does not tell you which one is bad or faulty. Also which abs sensor is at fault front or back. do you just replace them or do you go to the dealer to find it out. why have the reader for oil changes only.
If you have a good scan tool, it will tell you which sensor is bad for the engine or ABS. If you don't have a good scan tool, take it to a good independent BMW shop. If they have the right scan tools (GT1, Autologic, Launch 431, PTT, or even the old Snap-On MT-2500) they can fix it cheaper than the dealer.
