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Home › Mitsubishi › 2015 › Mirage RF › Repair and Diagnosis › Engine Performance › Ignition System › On-Vehicle Service › Spark Plug Check And Cleaning › 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 (Refer to SPARK PLUG CHECK AND CLEANING  .

    Limit: Minimum 10 MΩ 

  2. After cleaning, measure the insulation resistance again. Replace the plug unless it is within the limited value.
    Fig 1: Measuring Spark Plug Insulation Resistance
    G09628825Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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