СИСТЕМА ЗАЖИГАНИЯ ПРОВЕРКА БЕЗ СНЯТИЯ С АВТОМОБИЛЯ

  1. PERFORM SPARK TEST

    1. Check for DTCs Click here.

      Note

      If any DTC is present, perform troubleshooting procedures for that DTC.

    2. Check that sparks occur.

      1. Remove the ignition coils and spark plugs Click here.

      2. Install the spark plug to the ignition coil and connect the ignition coil connector.

      3. Disconnect the 4 fuel injector connectors.

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      4. Ground the spark plug.

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      5. Visually check that sparks occur while the engine is being cranked.

        Note

        • Be sure to ground the spark plug when checking.

        • If the ignition coil has been struck or dropped, replace it.

        • Do not crank the engine for more than 2 seconds.

    3. Perform the spark test according to the procedures below:

      1. Check that the wire harness side connector of the ignition coil with igniter is securely connected.

        Result
        Result Proceed to
        NG Connect securely
        OK Go to next step

      2. Perform a spark test on each ignition coil with igniter.

        1. If there is a cylinder where sparks do not occur, replace its ignition coil with the ignition coil of a cylinder where sparks occur normally.

        2. Crank the engine and visually check that sparks occur at the cylinder with the normally operating ignition coil.

        Result
        Result Proceed to
        OK Replace ignition coil with igniter
        NG Go to next step

      3. Check the spark plug.

        Result
        Result Proceed to
        NG Replace spark plug
        OK Go to next step

      4. Check the power supply to the ignition coil with igniter.

        1. Turn the engine switch on (IG).

        2. Check that there is battery voltage at the ignition coil positive (+) terminal.

        Result
        Result Proceed to
        NG Check wiring between ignition switch and ignition coil with igniter
        OK Go to next step

      5. Check the camshaft position sensor Click here.

      6. Check the crankshaft position sensor Click here.

      7. Check the IGT signal circuit Click here.

    4. Connect the 4 fuel injector connectors.

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    5. Install the ignition coils and spark plugs Click here.

  2. CHECK SPARK PLUG

    1. Check the electrode.

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      1. Using a megohmmeter, measure the insulation resistance.

        Correct insulation resistance
        10 MΩ or higher

        If the result is not as specified, clean the plug and measure the resistance again.

        Tech Tips

        If a megohmmeter is not available, perform the following simple inspection instead.

    2. Alternative inspection method:

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      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.

    3. Check the spark plug for any damage on its thread and insulator.

      If there is damage, replace the spark plug.

      Recommended Spark Plug
      Manufacturer Spark Plug Type
      DENSO K20R-U11
      NGK BKR6EYA-11

    4. Clean the spark plugs.

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    5. Check the spark plug electrode gap.

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      Maximum electrode gap for used spark plug
      1.4 mm (0.0551 in.)

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

      Electrode gap for new spark plug
      1.0 to 1.1 mm (0.0394 to 0.0433 in.)