Diesel Data: Automotive Repair

Ignition Coil: 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).

INSPECT IGNITION COIL (WITH IGNITER) 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. Disconnect the 4 injector connectors.

5. Ground the spark plug.

6. Check if the spark occurs while the engine is being cranked.

NOTE: To prevent gasoline from being injected from injectors during this test, crank the engine for no more than 5 - 10 seconds at time.




If the spark does not occur, do the test as shown.

7. Using a 16 mm plug wrench, reinstall the spark plugs.

Torque: 25 N.m (255 kgf.cm, 19 ft.lbf)

8. Reinstall the ignition coils.