Ignition Coil: Testing and Inspection
1. INSPECT IGNITION COIL (WITH IGNITER) AND SPARK TESTa. Check that the spark occurs.
b. Remove the ignition coils (with igniter)
c. Remove the spark plugs.
d. Install the spark plugs to each ignition coil (with igniter), and connect the ignition coil (with igniter) connector.
e. Disconnect the 8 injector connectors.
f. Ground the spark plug.
g. Check that spark occurs while engine is being cranked.
NOTE: To prevent excess fuel from being injected out of the Injectors during this test, do not crank the engine for more 5 - 10 seconds at a time.
If the spark does not occur, do the test as shown.
2. INSPECT IGNITION COIL
a. Remove the air cleaner hose.
b. Disconnect the high-tension cords from the ignition coils.
c. Disconnect the ignition coil connectors.
d. Inspect the primary coil resistance.
Using an ohmmeter, measure the resistance between the positive (+) and negative (-) terminals.
If the resistance is not as specified, replace the ignition coil.
e. Remove the ignition coils.
f. Inspect the secondary coil resistance.
Using an ohmmeter, measure the resistance between the positive (+) and high-tension terminals.
If the resistance is not as specified, replace the ignition coil.
g. Reinstall the ignition coils.
h. Reconnect the ignition coil connectors and high-tension cords.
i. Reinstall the air cleaner hose.