FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Spark Plug Insulation Resistance Check

SPARK PLUG INSULATION RESISTANCE CHECK







1. Measure the insulation resistance of the spark plug. If the insulation resistance of the spark plug is under the limited value, clean the spark plug.
2. After cleaning, measure the insulation resistance again. Replace the plug unless it is within the limited value.

Limit: Minimum 10 M ohms