On-Vehicle Service; Check; Spark Plug Cable Test; Spark Plug Test - Mitsubishi MOTORS 3000GT Bedienungsanleitung

Defective insulation
Defective insulation'
ENGINE ELECTRICAL - Ignition System

SPARK PLUG CABLE TEST

(1) Disconnect, one at a time, each of the spark plug cables
while the engine is idling to check whether the engine's
running performance changes or not.
Caution
Wear rubber gloves while doing so.
(2) If the engine performance does not change, check the
resistance of the spark plug cable, and check the spark
plug itself.

SPARK PLUG TEST

(1) Remove the spark plug and connect to the spark plug
cable.
(2) Ground the spark plug outer electrode (body), and crank
the engine.
Check to be sure that there is an electrical discharge
between the electrodes at this time.
Good