Spark Plug: Testing and Inspection

Download the full database via torrent (~1.1 TB)

SPARK PLUG TEST
1. Remove the spark plug and connect to the spark plug cable.
2. Ground the spark plug outer electrode, and crank the engine.
3. Check to be sure that there is an electrical discharge between the electrodes at this time.

NOTE: When replacing the spark plug, should use the genuine parts having resistance.