Corolla S Sedan L4-1794cc 1.8L DOHC MFI (2001)
c. Using a 16 mm plug wrench, remove the spark plugs.
d. Check the spark plug for thread damage and insulator damage.
If abnormal, replace the spark plug.
Recommended spark plug:
e. Check the spark plug electrode gap.
Maximum electrode gap for used spark plug: 1.2 mm (0.047 in.)
If the gap is greater than maximum, replace the spark plug.
Correct electrode gap for new spark plug: 1.0 - 1.1 mm (0.040 - 0.043 in.)
NOTE: If adjusting the gap of a new spark plug, bend Only the bass of the ground electrode. Do not touch the tip. Never attempt to adjust the gap
on a used plug.