xA L4-1.5L (1NZ-FE) (2006)
Spark Plug: Testing and Inspection
INSPECT SPARK PLUG
a. Remove the ignition coils.
b. Using a 16 mm plug wrench, remove the 4 spark plugs.
c. Clean the spark plugs.
If the electrode has traces of wet carbon, clean the electrode with a spark plug cleaner and then dry it.
Standard air pressure:
588 kPa (6 kgf/sq.cm, 85 psi)
Standard duration:
20 seconds or less
d. Check the spark plug for any damage on its threads and insulator.
If there is damage, replace the spark plug. If not, reinstall the spark plug.