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Our automotive experts have put together the following information about the P00AC diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P00AC code.

OBD II Fault Code

  • OBD II P00AC

    OBD-II Code Decreased engine performance is defined as a Intake Air Temperature Sensor 1 Circuit Low

    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 P00AC.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Increased fuel consumption

    Common Problems That Trigger the P00AC Code

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