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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 307 (Engine Control System (DTC/Circuit Diagnosis) (4.0L) (1 Of 4)) >> DTC/Circuit Diagnosis >> DTC P0127: IAT Sensor >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan NV3500 HD, 2018 Nissan NV2500 HD, and 2018 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK INTAKE AIR TEMPERATURE SENSOR 

    Check the intake air temperature sensor. Refer to Component Inspection .

    Is the inspection result normal?

    YES

    Check intermittent incident. Refer to Intermittent Incident .

    NO

    Replace mass air flow sensor (with intake air temperature sensor). Refer to Exploded View .

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