Disconnect the ignition coil connectors (A).
Remove the ignition coils (A).
Using a spark plug socket, remove the spark plug.
Install the spark plug to the ignition coil.
Ground the spark plug to the engine.
To prevent fuel being injected from injectors while the engine is being cranked, disconnect the injector connector.
Crank the engine for no more than 5 ~ 10 seconds.
Inspect all the spark plugs.
Using a spark plug socket, install the spark plug.
Install the ignition coil.
Reconnect the ignition coil connector.
Using a spark plug socket, remove the spark plug.
Be careful that no contaminants enter through the spark plug holes.
Inspect the electrodes (A) and ceramic insulator (B).
Condition | Dark deposits | White deposits |
Description | - Fuel mixture too rich - Low air intake | - Fuel mixture too lean - Advanced ignition timing - Insufficient plug tightening torque |
Check the electrode gap (A).
Standard :
1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.)
Measure the primary coil resistance between terminals (+) and (-).
Standard value: 0.62Ω ± 10%
Remove the engine cover (A).
Disconnect the ignition coil connectors (A).
Remove the ignition coils (A).
Installation is reverse order of removal.