Operation CHARM: Car repair manuals for everyone.

Air Flow Meter/Sensor: Testing and Inspection





1. INSPECT MAF METER RESISTANCE.
- Using an ohmmeter, measure the resistance between terminals THA and E2.





- If the resistance is not as specified, 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 EVG.
- 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.