Air Flow Meter/Sensor: Testing and Inspection

MASS AIR FLOW (MAF) METER INSPECTION
1. INSPECT MAF METER (THA TERMINAL) RESISTANCE.



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

VAF Meter Terminal Values:

^ 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 E21.
- Blow air into the MAF meter, and check that the voltage fluctuates.

^ If operation is not as specified, replace the MAF meter.