LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mitsubishi >> 2008 >> Lancer ES, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Ignition System - Lancer Evolution) >> Ignition System >> On-Vehicle Service >> Spark Plug Check And Cleaning >> Spark Plug Insulation Resistance Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Spark Plug Insulation Resistance Check

WARNING: This page is about a different variant/trim than selected.
  1. Measure the insulation resistance. If the insulation resistance of the spark plug is under the limited value, clean the plug within 20 seconds using a plug cleaner.
  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
    G05375455Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
scientia non olet · About LEMON Manuals