Air Flow Meter/Sensor: Testing and Inspection

INSPECT MASS AIR FLOW METER




a. Check the output voltage.
1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
2. Using a voltmeter, connect the positive (+) tester probe to terminal VG, and negative (-) tester probe to terminal E2G.
3. Blow air into the MAF meter, and check that the voltage fluctuates.




b. Measure the resistance between terminals 4 (THA) and 5 (E2).