Solara V6-3.3L (3MZ-FE) (2004)
Spark Plug: Testing and Inspection
INSPECT SPARK PLUG
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 megaohmmeter, measure the insulation resistance.
Correct insulation resistance: 10 MOhm or more
If the resistance is less than the specified value, proceed to step (d).
HINT: If the megaohmmeter is not available, do 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.
4. If the electrode is dry, the spark plug is functioning. Proceed to step 2.
5. If the electrode is damp, proceed to step (c), (d) and (e).
6. Install the spark plug.
c.
Check the spark plug for any damage on its thread and insulator.
Recommended Spark Plug
If there is any damage, replace the spark plug.