FUEL PUMP (for High Pressure) ON-VEHICLE INSPECTION


  1. CHECK FUEL PUMP OPERATION


    1. Check fuel pressure.


      1. Connect the GTS to the DLC3.

      2. Start the engine.

      3. Turn the GTS on.

      4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Target Fuel Pressure.

      5. Check that the fuel pressure fluctuates when the target fuel pressure changes.

        Tech Tips

        The target fuel pressure operation lowers the target fuel pressure by 12.5% or increases the target fuel pressure by 25%.

        Standard
        Fuel pressure fluctuates in accordance with the GTS operation.

        If the result is not as specified, replace the fuel pump or fuel pressure sensor.

    2. Check operating sound.


      1. Remove the V-bank cover.

      2. Start the engine.

      3. A01FEX3

        Using a sound scope, check the operating sound of the pump.

        If no sound can be heard, check the fuel pump, wire harness and ECM.

      4. Stop the engine.

      5. Reinstall the V-bank cover.