Air Flow Meter/Sensor: Testing and Inspection

Mass Air Flow Sensor:

1. Peel mass air flow sensor harness connector rubber back if the harness connector is connected.
2. Turn ignition switch "ON".
3. Start engine and warm it up sufficiently.

Mass Air Flow Sensor Test:

4. Check voltage between terminal A and ground.

Mass Air Flow Sensor Test:

5. If NG, remove Mass Air Flow Sensor (MAF) from air duct. Check hot wire for damage or dust.