IGNITION SYSTEM > ON-VEHICLE INSPECTION

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1. INSPECT SPARK PLUG


    I039522E10

  1. Check the electrode using a megohmmeter:

    1. Using a megohmmeter, measure the insulation resistance.

      Standard Insulation Resistance:
      10 MΩ or more

      If the result is below 10 MΩ, clan the plug and measure the resistance again.

  1. Check the electrode without using a megohmmeter:

    1. Quickly accelerate the engine to 4000 rpm 5 times.

    2. Remove the spark plug.

    3. Visually check the spark plug.
      If the electrode is dry, the spark plug is functioning properly. If the electrode is damp, proceed to the next step.

  1. Check the spark plug for any damage to its threads and insulator.
    If there is any damage, replace the spark plug.

    Recommended Spark Plug:
    Manufacturer
    		Spark Plug Type
    DENSO
    		SK16HR11



    A175269E01
    B062019E01

  1. Check the spark plug electrode gap.

    Maximum Electrode Gap for Used Spark Plug:
    1.3 mm (0.05118 in.)

    If the gap is greater than the maximum, replace the spark plug.

    Electrode Gap for New Spark Plug:
    1.0 to 1.1 mm (0.03937 to 0.04331 in.)

    If the electrode has traces of wet carbon, clean the electrode with a spark plug cleaner and then dry it.

    Standard Air Pressure:
    588 kPa (6 kgf/cm2, 85 psi)

    Standard Duration:
    20 seconds or less

    HINT:
    Only use the spark plug cleaner when the electrode is free of oil. If the electrode has traces of oil, use gasoline to clean off the oil before using the spark plug cleaner.