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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 485 (Engine Control System (VK56VD) DTC/Circuit Diagnosis (1 Of 6)) >> DTC/Circuit Diagnosis >> DTC P0087: FRP Control System >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD and 2019 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC PRIORITY 

    If DTC P0087 is displayed with DTC P0090 and/or P1197, first perform the trouble diagnosis for DTC P0090 and/or P1197.

    Is applicable DTC detected?

    YES

    Perform the diagnosis of the applicable. Refer to DTC Index .

    NO

    GO TO 2.

  2. BLEED THE FUEL LINE 
    1. Start the engine, and let the engine run at idle at least for 10 minutes.
    2. Perform DTC confirmation procedure of DTC P0087.

    Is 1st trip DTC detected?

    YES

    GO TO 3.

    NO

    GO TO 7.

  3. CHECK LOW FUEL PRESSURE 

    Check low fuel pressure. Refer to Work Procedure .

    Is inspection result normal?

    YES

    GO TO 4.

    NO

    Check low fuel pressure system. Refer to Diagnosis Procedure .

  4. CHECK LOW PRESSURE FUEL LINE FOR INTERNAL LEAKAGE 
    1. Turn ignition switch OFF.
    2. Turn ignition switch ON.
    3. Check the following value 30 minutes after turning the ignition switch ON.

      Low fuel pressure

      : 206 kPa (2.1 bar, 2.2 kgf/cm2, 30 psi) or more

    Is inspection result normal?

    YES

    GO TO 5.

    NO

    Replace low pressure fuel pump. Refer to Removal and Installation - VK56VD .

  5. CHECK HIGH PRESSURE FUEL PUMP 

    Check high pressure fuel pump. Refer to Component Inspection (High Pressure Fuel Pump) .

    Is inspection result normal?

    YES

    GO TO 6.

    NO

    Repair or replace the error-detected parts.

  6. CHECK LIFTER 

    Check lifter. Refer to Removal and Installation .

    Does the lifter top surface have scratches and/or dents?

    YES

    Replace the error-detected parts.

    NO

    INSPECTION END

  7. CHECK LOW PRESSURE FUEL LINE FOR INTERNAL LEAKAGE 
    1. Turn ignition switch OFF.
    2. Connect fuel pressure gauge. Refer to Work Procedure .
    3. Turn ignition switch ON.
    4. Check the following value 30 minutes after turning the ignition switch ON.

      Low fuel pressure

      : 206 kPa (2.1 bar, 2.2 kgf/cm2, 30 psi) or more

    Is inspection result normal?

    YES

    INSPECTION END

    NO

    Replace low pressure fuel pump. Refer to Removal and Installation - VK56VD .

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