Ignition system (2AZ−FE)(From July, 2003)
- Do not use a wire brush for cleaning.
- Do not attempt to adjust the electrode gap of a used spark plug.
a. Check the electrode.
1. Using an ohmmeter, measure the insulation resistance.Correct insulation resistance: 10 MW or moreIf the resistance is less than the specified value, proceed to step d..
HINT: If the ohmmeter is not available, perform the following simple inspection instead.

b. Alternative inspection method:
- Quickly accelerate the engine to 4,000 rpm 5 times.
- Remove the spark plug.
- Visually check the spark plug.
- If the electrode is dry, the spark plug is functioning.
Proceed to step 2.
- If the electrode is damp, proceed to steps c., d., and e..
4. Install the spark plug.
c. Check the spark plug for any damage on its thread and insulator.
If there is damage, replace the spark plug.
Recommended spark plug:

d. Check the spark plug electrode gap.
Maximum electrode gap for used spark plug:

HINT: Use the spark plug cleaner only when the electrode is free of oil. If the electrode has traces of oil, use gasoline to clean off the oil before using the spark plug cleaner.

:

If the resistance is not as specified, replace the sensor.
3. INSPECT CRANKSHAFT POSITION SENSORa. Using an ohmmeter, measure the resistance between the terminals.
Standard:

If the resistance is not as specified, replace the sensor.
Test yourself
A quick Toyota Camry quiz: every answer comes with an explanation and a link to the manual page.