Inspect Spark Plugs

Remove the ignition coils (with igniter).
(See REMOVAL under IGNITION COIL.
Using a 16 mm plug wrench, remove the spark plugs.

Fig 1: Removing Spark Plugs
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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 kgf/cm ² , 85 psi) .

Duration: 20 seconds or less .

HINT:

If there are traces of oil, remove it with gasoline before using the spark plug cleaner.

Fig 2: Cleaning Spark Plugs
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Check the spark plug for thread damage and insulator damage.
If abnormal, replace the spark plug.

Fig 3: Recommended Spark Plugs
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: Inspecting Spark Plugs
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Adjust the spark plug electrode gap.
Electrode gap: 0.8 mm (0.031 in.) .
Using a 16 mm plug wrench, install the spark plugs.
Torque: 17.5 N.m (180 kgf.cm, 13 ft.lbf) .
Reinstall the ignition coils (with igniter).
See INSTALLATION .