Air Flow Meter/Sensor: Testing and Inspection

Mass air flow sensor (Hot film type)

Inspection
1. Attach mass air flow sensor to air intake hose and to mounting bracket.
2. Replace two bolts to retain mass air flow sensor to mounting bracket.

Tightening Torque: 69 - 96.3 lb-in (7.8 - 10.8 N.m, 0.8 - 1 kg-m)

2. Reconnect air intake hose to the mass air flow sensor.
4. Tighten bolts of retaining clamps on both sides of mass air flow sensor.




5. Reconnect mass air flow sensor connector to sensor.
6. Warm up engine to normal operating temperature and let engine idle.
7. Connect voltmeter between terminal 2 (GIL) and ground.
8. Verify that the voltage varies between 0.6 V - 0.8 V.
9. Rev up engine and verify that voltage varies between 3.0 V - 4.0 V.




10. If voltage is not within specification, replace mass air flow sensor.