Air Flow Meter/Sensor: Testing and Inspection

The scan tool displays the MAF value in grams per second (gm/s). At idle, MAF should read between 4 gm/s -7 gm/s on a fully warmed up engine. Values should change rather quickly on acceleration, but values should remain fairly stable at any given RPM. A MAF sensor malfunction or MAF signal circuit problem should set DTC P0101, DTC P0102, or DTC P0103. For DTC diagnosis refer to System Diagnosis / Diagnostic Tables / Diagnostic Trouble Code Tables. Testing and Inspection