Scoupe L4-1468cc 1.5L SOHC VIN J MFI (1994)
Spark plug: 20 - 30 Nm (15 - 21 ft lb)
Analyzing Spark Plug
Engine conditions can be analyzed by the tip deposits near the electrode.
Spark Plug Test
If engine can be cranked, connect the spark plug to the high tension cable. Ground the outer electrode (main body), and crank the engine. In the
atmosphere, only short sparks are produced because of the small discharge gap. If the spark plug is good, however, sparks will occur in the
discharge gap (between the electrodes). In a defective spark plug, no sparks will occur because of a leak through the insulation.
