Component Inspection

INSPECTION

1. INSPECT MASS AIR FLOW METER




a. Check the output voltage.
1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
2. Using a voltmeter, connect the positive (+) tester probe to terminal VG, and the negative (-) tester probe to terminal E2G.
3. Blow air into the MAF meter, and check that the voltage fluctuates.




b. Measure the resistance between terminals 4 (THA) and 5 (E2).

2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY




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

Standard: 6.9 to 7.9 Ohms at 20°C (68°F)




b. Connect the battery's positive (+) lead to terminal 1 and negative (-) lead to terminal 2. Check the movement of the valve.

3. INSPECT THROTTLE W/MOTOR BODY ASSEMBLY







a. Measure the resistance between the terminals.

4. INSPECT ENGINE COOLANT TEMPERATURE SENSOR







a. Measure the resistance between the terminals.

NOTE: If checking the ECT sensor in the water, keep the terminals dry. After the check, wipe the sensor.

5. INSPECT KNOCK CONTROL SENSOR




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

Standard: 120 to 280 kOhms at 20°C (68°F)

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

6. INSPECT ENGINE ROOM JUNCTION BLOCK ASSEMBLY







a. Inspect circuit opening relay
Using an ohmmeter, measure the resistance between the terminals.







b. Inspect EFI relay
Using an ohmmeter, measure the resistance between the terminals.







c. Inspect A/F relay
Using an ohmmeter, measure the resistance between the terminals.