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Home >> Mitsubishi >> 2015 >> Lancer Evolution GSR >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - Lancer Evolution >> On-Vehicle Service >> Spark Plug Insulation Resistance Check
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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 CLEANING ).
  2. After cleaning, measure the insulation resistance again. Replace the plug unless it is within the limited value.

    Limit: Minimum 10 MΩ 

    Fig 1: Checking Spark Plug Insulation Resistance
    G09641040Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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