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OBD II Fault Code

  • OBD II P0127

    OBD-II Code Decreased engine performance is defined as a Intake Air Temperature Too High

    The Intake Air Temperature Sensor measures the air temperature going into the engine. The engine control module (PCM) uses this information to determine how much fuel to use to keep the engine running properly. When the PCM detects a problem with this sensor or the circuit for the sensor, it will set code P0127.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Increased fuel consumption

    Common Problems That Trigger the P0127 Code

    • Intake Air Temperature (IAC) sensor failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue

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