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On-Vehicle Inspection [10/2022 - ]: Procedure

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  1. FUEL PUMP ASSEMBLY OPERATION 
    1. Check fuel pressure.
      1. Start the engine.
      2. Check that the fuel pressure fluctuates when the target fuel pressure changes.

        Powertrain > Engine > Active Test 

        Active Test Display
        Control the Target Fuel Pressure Offset
        Data List Display
        Fuel Pressure (High)

        HINT: 

        The target fuel pressure operation decreases the target fuel pressure by 12.5% or increases the target fuel pressure by 24.8%.

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

    2. Check operating sound.
      1. Start the engine.
      2. 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.

      3. Stop the engine.
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