Camry L4-2.4L (2AZ-FE) (2005)
Spark Plug: Testing and Inspection
INSPECT SPARK PLUG (From July 2003)
NOTE:
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Do not use a wire brush for cleaning.
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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 MOhms or more
If 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:
1. Quickly accelerate the engine to 4,000 rpm 5 times.
2. Remove the spark plug.
3. Visually check the spark plug.
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If the electrode is dry, the spark plug is functioning. Proceed to step 2.
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If the electrode is damp, proceed to steps (c), (d), and (e).
4. Install the spark plug.
Recommended Spark Plug
c. Check the spark plug for any damage on its thread and insulator.
If there is damage, replace the spark plug.