Spark Plug: Testing and Inspection

ON-VEHICLE INSPECTION

INSPECT SPARK PLUG
1. Remove the ignition coil with bolt.





NOTE:
When removing the ignition coil connector, pull the lock pin(A) and push the clip(B).




2. Using a spark plug socket, remove the spark plug.

CAUTION:
Be careful that no contaminates enter through the spark plug holes.

3. Inspect the electrodes (A) and ceramic insulator (B).




INSPECTION OF ELECTRODES





4. Check the electrode gap (A).

Standard
1.0 - 1.1 mm (0.0394 - 0.0433 in.)