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 negative (-) tester probe to terminal E2G.
3. Blow air into the MAF meter, and check that the voltage fluctuates.

Standard:

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

If the result is not as specified, replace the MAF meter.

2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY

a. Measure the resistance between the terminals.

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

If the result is not as specified, replace the OCV assy.




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

NOTE: Confirm that the valve moves freely and does not become stuck in any position. If necessary, replace the OCV assy.

HINT: If the valve cannot return properly because of foreign matter, a small pressure leak in the advanced direction may occur and a DTC will be output.

3. INSPECT ACCELERATOR PEDAL ASSY

Standard:

a. Measure the resistance between the terminals.

If the result is not as specified, replace the pedal assy.

4. INSPECT THROTTLE BODY ASSY

Standard:

a. Measure the resistance between the terminals.

If the result is not as specified, replace the throttle body assy.

5. INSPECT ENGINE COOLANT TEMPERATURE SENSOR

Standard:

a. Measure the resistance between each terminal.

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

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

6. INSPECT KNOCK SENSOR (1MZ-FE ENGINE TYPE)




a. Using an ohmmeter, measure the resistance between the terminal and body.

Standard: 10 kOhms or higher

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

7. INSPECT KNOCK SENSOR (3MZ-FE ENGINE TYPE)




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

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

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

8. INSPECT RELAY (Marking: EFI, C/OPN)

Standard:

a. Using an ohmmeter, measure the resistance of the relay.

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