IF YOU CONFIRM: The MIL is ON with DTC P0101 and/or P010B (MAF SEN/CIRCUIT-B1/B2) and there are no drivability issues. ACTION: 1. Refer to step 6 in the SERVICE PROCEDURE to confirm this bulletin applies to the vehicle you are working on. 2. If this bulletin applies, reprogram the ECM. NOTE: If this bulletin does apply (the ECM needs to be reprogrammed), do NOT replace the mass air flow sensor(s). See this bulletin for further detail.
