Tacoma 2WD V6-4.0L (1GR-FE) (2006)
g. 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.
h. Check the spark plug electrode gap.
Standard electrode gap: 1.0 to 1.1 mm (0.039 to 0.043 in.)
If the electrode gap is larger than the standard, replace the spark plug.