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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Control System (DTC/Circuit Diagnosis) (5.6L) (5 Of 6)) >> DTC/Circuit Diagnosis >> DTC P1451: Pressure Sensor >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK HOSE AND PIPING 
    1. Turn ignition switch OFF.
    2. Check the following.

    - Blockage, crush, or damage in the hose and piping of EVAP purge line between fuel tank and intake manifold.

    - Blockage, crush, or damage in the hose and the piping of intake air passage between inlet air duct and intake manifold.

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace error-detected parts

  2. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR 

    Check EVAP control system pressure sensor. Refer to Component Inspection (EVAP Control System Pressure Sensor) .

    Is the inspection result normal?

    YES

    Check intermittent incident. Refer to Intermittent Incident .

    NO

    Replace EVAP control system pressure sensor.