Component Inspection
INSPECTION1. 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).
If the result is not as specified, replace the MAF meter.
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 degree C (68 degree F)
b. Connect the battery's positive (+) lead to terminal 1 and negative (-) lead to terminal 2. Check the movement of the valve.
If operation is not as specified, replace the valve.
3. INSPECT THROTTLE W/MOTOR BODY ASSEMBLY
a. Measure the resistance between the terminals.
If the result is not as specified, replace the throttle body assembly.
4. INSPECT ENGINE COOLANT TEMPERATURE SENSOR
a. Measure the resistance between the terminals.
If the result is not as specified, replace the sensor.
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 degree C (68 degree F)
If the result is not as specified, replace the sensor.
6. INSPECT ENGINE ROOM JUNCTION BLOCK ASSEMBLY
a. Inspect circuit opening relay
1. Using an ohmmeter, measure the resistance between the terminals.
If the result is not as specified, replace the engine room junction block assembly.
b. Inspect EFI relay
1. Using an ohmmeter, measure the resistance between the terminals.
If the result is not as specified, replace the engine room junction block assembly.
c. Inspect A/F relay
1. Using an ohmmeter, measure the resistance between the terminals.
If the result is not as specified, replace the engine room junction block assembly.