Air Flow Meter/Sensor: Testing and Inspection

1. INSPECT MASS AIR FLOW (MAF) METER RESISTANCE.





- Using an ohmmeter, measure the resistance between terminals THA and E2.





- If the resistance is not as specified in the above image, replace the MAF meter.
2. INSPECT MAF METER OPERATION.





- Connect the MAF meter connector.
- Using a voltmeter, connect the positive (+) tester probe to terminal VG, and negative (-) tester probe to terminal E3.
- Blow air into the MAF meter, and check that the voltage fluctuates.
- If operation is not as specified, replace the MAF meter.
- Disconnect the MAF meter connector.