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  • P0071 Inlet Air Temperature Sensor Rationality

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    Mopar1973Man

    P0071 INLET AIR TEMPERATURE SENSOR RATIONALITY (DIESEL)

    When Monitored and Set Condition:

    When Monitored: While the engine is running.
    Set Condition: The ECM does not read a change in value from the sensor over time.

    POSSIBLE CAUSES

    • INLET AIR TEMPERATURE SENSOR
    • INTERMITTENT CONDITION

    DIAGNOSTIC PROCEDURE

    NOTE:Refer to VERIFICATION TESTS for appropriate verification test procedures.

    1. Remove the temperature sensor and reconnect the wiring to the sensor. With the DRBIII® in Sensors, Monitor the inlet Air Temperature. While heating the sensor with an external heat source (DO NOT USE OPEN FLAME). Does the reading from the sensor increase at least 5 degrees F. on the DRBIII®?
      Yes --> Refer to the SYMPTOM: INTERMITTENT CONDITION Symptom (Diagnostic Procedure). Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
      No --> Replace the inlet air temperature sensor Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
       


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