Ignition System: Testing and Inspection

ON-VEHICLE INSPECTION

NOTE: "Cold" and "Hot" in these sentences express the temperature of the coils themselves. "Cold" is from -10 °C (14 °F) to 50 °C (122 °F) and "Hot" is from 50 °C (122 °F) to 100 °C (212 °F).

1. INSPECT IGNITION COIL WITH IGNITOR AND SPARK TEST
Check that the spark occurs.
1. Remove the ignition coils.
2. Remove the spark plugs.
3. Install the spark plugs to each ignition coil, and connect the ignition coil connector.
4. Ground the spark plug.
5. Check if spark occurs while engine is being cranked.

NOTE: To prevent gasoline from being injected from injectors during this test, crank the engine for no more than 1 - 2 seconds at time.




If the spark does not occur, do the test as per the given flow chart.

2. INSPECT SPARK PLUGS




a. Remove the ignition coils.
b. Using a 16 mm plug wrench, remove the 4 spark plug.




c. Using a spark plug cleaner or wire brush, clean the spark plug.

Recommended Spark Plug:

d. Check the spark plug for electrode wear, threads damage and insulator damage.
If abnormal, replace the plugs.




e. Adjust the electrode gap.
Carefully bend the outer electrode to obtain the correct electrode gap.

Correct electrode gap: 0.8 mm (0.031 in.)

f. Using a 16 mm plug wrench, reinstall the 4 spark plug.
Torque: 20 N.m (200 kgf.cm, 14 ft.lbf)

g. Reinstall the ignition coil.

3. INSPECT CAMSHAFT POSITION SENSOR




a. Disconnect the sensor connector.

Resistance:

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

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

c. Reconnect the camshaft position sensor connector.

4. INSPECT CRANKSHAFT POSITION SENSOR




a. Remove the sensor
.

Resistance:

b. Using an ohmmeter, measure the resistance between terminals NE and NE-.

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

c. Reinstall the sensor.