Inspection

INSPECTION

1. INSPECT INTAKE AIR FLOW METER SUB-ASSEMBLY




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, then 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.

2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY







a. Check the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.




b. Check the operation.
1. Apply battery voltage across the terminals, then check that the spool valve operates.

NOTE: Check that the spool valve is not stuck.

HINT: The spool valve may not return if foreign objects are caught in it. It may cause subtle pressure leakage to the advance side, and a DTC may be set.