Spark Plug: Testing and Inspection

ON-VEHICLE INSPECTION

NOTE: "Cold" and "Hot" in these sentences express the temperature of the coils themselves. "Cold" is from -10 °C (14 °F) to 50 °C (122 °F) and "Hot" is from 50 °C (122 °F) to 100 °C (212 °F).

INSPECT SPARK PLUGS




a. Remove the ignition coils.
b. Using a 16 mm plug wrench, remove the 4 spark plug.




c. Using a spark plug cleaner or wire brush, clean the spark plug.

Recommended Spark Plug:

d. Check the spark plug for electrode wear, threads damage and insulator damage.
If abnormal, replace the plugs.




e. Adjust the electrode gap.
Carefully bend the outer electrode to obtain the correct electrode gap.

Correct electrode gap: 0.8 mm (0.031 in.)

f. Using a 16 mm plug wrench, reinstall the 4 spark plug.
Torque: 20 N.m (200 kgf.cm, 14 ft.lbf)

g. Reinstall the ignition coil.