Air Flow Meter/Sensor: Testing and Inspection

2TR-FE ENGINE CONTROL SYSTEM: MASS AIR FLOW METER:

INSPECTION

1. INSPECT MASS AIR FLOW METER





(a) Check the operation.
(1) Apply battery voltage across terminals 1 (+B) and 2 (E2G).
(2) Using a voltmeter, connect the positive (+) tester prove to terminal 3 (VG) and the negative (-) tester prove to terminal 2 (E2G).
(3) Blow air into the mass air flow meter and check that the voltage fluctuates.
If the voltage does not fluctuate, replace the mass air flow meter.





(b) Check the resistance.
(1) Using an ohmmeter, measure the resistance between the terminals.
Standard:





If the result is not as specified, replace the mass air flow meter.