Component Inspection

INSPECTION

1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY
a. Check the resistance.







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

If the result is not as specified, replace the camshaft timing oil control valve.

b. Check the operation.




1. Connect the positive (+) lead from the battery to terminal 1 and negative (-) lead to terminal 2, and check that the 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. This may cause subtle pressure leakage to the advance side, and a DTC may be set.

2. INSPECT MASS AIR FLOW METER
a. Check the operation.




1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
2. 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, and 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 terminals 4 (THA) and 5 (E2).

3. INSPECT ENGINE COOLANT TEMPERATURE SENSOR
a. Check the resistance.







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

NOTE: If checking the engine coolant temperature sensor in water, be careful not to allow water to enter the terminals. After checking, wipe the water off the engine coolant temperature sensor.

If the result is not as specified, replace the engine coolant temperature sensor.

4. INSPECT THROTTLE W/MOTOR BODY ASSEMBLY

a. Check the resistance.







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

If the result is not as specified, replace the throttle with motor body assembly.

5. INSPECT KNOCK SENSOR
a. Check the resistance.







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

If the result is not as specified, replace the knock sensor.

6. INSPECT MAIN RELAY
a. Check the resistance.







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

If the result is not as specified, replace the circuit opening relay.

7. INSPECT E.F.I. CIRCUIT OPENING RELAY ASSEMBLY
a. Check the resistance.







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

If the result is not as specified, replace the E.F.I. main relay.