FUEL PUMP(for High Pressure) ON-VEHICLE INSPECTION

PROCEDURE


  1. CHECK FUEL PUMP ASSEMBLY 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 / Active Test / Control the Target Fuel Pressure / Fuel Press.


        Powertrain > Engine > Active Test
        Active Test Display
        Control the Target Fuel Pressure
        Data List Display
        Fuel Press

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

        Tech Tips

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

        If the result is not as specified, replace the fuel pump assembly or fuel delivery pipe sub-assembly (fuel pressure sensor).

    2. Check operating sound.


      1. Remove the V-bank cover sub-assembly.

        Click here

      2. Start the engine.

      3. B0075RD

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

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

      4. Stop the engine.

      5. Reinstall the V-bank cover sub-assembly.

        Click here