RX 400h FWD V6-3.3L (3MZ-FE) Hybrid (2006)
Spark Plug: Testing and Inspection
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 a mega ohmmeter, measure the insulation resistance.
Correct insulation resistance: 10 MOhms or higher
If the resistance is less then the specified value, proceed to step (b).
HINT: If a mega 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.
4. Reinstall the spark plug.