Air Flow Meter/Sensor: Testing and Inspection
INSPECTION1. REMOVE MAF METER
a. Disconnect the MAF meter connector.
b. Remove the 2 screws, MAF meter and O-ring.
2. 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.
3. INSPECT MAF METER OPERATION
a. Connect the MAF meter connector.
b. Turn the ignition switch ON.
c. Using a voltmeter, connect the positive (+) tester probe to terminal VG, and negative (-) tester probe to terminal E2G.
d. Blow air into the MAF meter, and check that the voltage fluctuates.
If operation is not as specified, replace the MAF meter.
e. Turn the ignition switch to LOCK.
f. Disconnect the MAF meter connector.
4. REINSTALL MAF METER
a. Install the O-ring to the MAF meter.
b. Install the MAF meter with the 2 screws.
c. Connect the MAF meter connector.