Air Flow Meter/Sensor: Testing and Inspection
MASS AIR FLOW (MAF) METERINSPECTION
1. INSPECT MAF METER RESISTANCE
Using an ohmmeter, measure the resistance between terminal THA and E3.
If operation is not as specified, replace the MAF meter.
2. INSPECT MAF METER OPERATION
a. Connect the negative (-) terminal cable to the battery.
b. Turn the ignition switch ON.
c. Connect the MAF meter connector.
d. Using a voltmeter, connect the positive (+) tester probe Tc terminal VG, and negative (-) tester probe to terminal E3.
e. Blow air into the MAF meter, and check that the voltage fluctuates.
If operation is not as specified, replace the MAF meter.
f. Turn the ignition switch OFF.
g. Disconnect the negative (-) terminal cable from the battery.
h. Disconnect the MAF meter connector.