Air Flow Meter/Sensor: Testing and Inspection
MASS AIR FLOW (MAF) METERINSPECTION
1. REMOVE MAF METER
a. Disconnect the MAF meter connector.
b. Remove the 2 screws, MAF meter and gasket.
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. Connect the negative (-) terminal cable to the battery.
c. Turn the ignition switch ON.
d. Using a voltmeter, connect the positive (+) tester probe to terminal VG, and negative (-) tester probe to terminal E2G.
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.
4. REINSTALL MAF METER
a. Install the gasket to the MAF meter.
b. Install the MAF meter with the 2 screws.
Torque: 10.7 N.m (109 kgf.cm 8 ft.lbf)
c. Connect the MAF meter connector.