Air Flow Meter/Sensor: Testing and Inspection

MASS AIR FLOW (MAF) METER INSPECTION



1. REMOVE AIR CLEANER HOSE.
- Disconnect the PCV hose.



- Loosen the 2 hose clamps, and remove the air cleaner hose.

2. REMOVE MAF METER.
- Disconnect the MAF meter connector.



Remove the 2 bolts and MAF meter.

Torque: 6.9 Nm (70 kgf.cm, 61 in.lb)

3. 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.

4. INSPECT MAF METER OPERATION.
- Connect the MAF meter connector.



- Using a voltmeter, connect the positive (+) tester probe to terminal VG, and negative (-) tester probe terminal VG-.
- Blow air into the MAF meter, and check that the voltage fluctuates.
- If operation is not as specified, replace the MAF meter.
- Disconnect the MAF meter connector and re install MAF meter.
- Install in reverse order of removal.

see also P0100 and P0101 under the "Trouble Code Charts".