Spark Plug: Testing and Inspection
ON-VEHICLE INSPECTIONNOTE: "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 (with igniter).
b. Using a 16 mm plug wrench, remove the spark plugs.
c. Clean the spark plugs.
If the electrode has traces of wet carbon, allow it to dry and then clean with a spark plug cleaner.
Air pressure: Below 588 kPa (6 kg/Sq. cm, 85 psi)
Duration: 20 seconds or less
HINT: If there are traces of oil, remove it with gasoline before using the spark plug cleaner.
d. Check the spark plug for thread damage and insulator damage.
If abnormal, replace the spark plug.
e. Adjust the spark plug electrode gap.
Electrode gap: 0.8 mm (0.031 in.)
f. Using a 1 6 mm plug wrench, install the spark plugs.
Torque: 17.5 N.m (180 kg.cm, 13 ft.lb)
g. Reinstall the ignition coils (with igniter).