If your BMW 733 Air Flow Meter keeps failing the issue is most likely to much oil on a BMW performance air filter, or to much blow by from the 733 engine.
Use only BMW OE quality replacement Catalytic Converters to keek your BMW 733 in the best running condition. DriveWire sells only California legal 733 OBD-II Converters.
Do not buy the cheap no name remanufactured or rebuilt BMW 733 electronic control units, as in our experience most of these ecu’s don’t even work right out of the box. We also carry programmable BMW 733 control units from AEM that allows you to custom program your BMW 733 ignition and fuel system.
The BMW 733 Oxygen sensor is a critical part of the emmision control system and should be replaced as soon as it fails. Make sure to check the BMW 733 diagnosics codes for proper replacement of the O2 Sensor.