OBD II Fault Code

  • OBD II P00AA

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

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 P00AA.

Decreased engine performance Symptoms

  • Decreased engine performance
  • Increased fuel consumption

Common Problems That Trigger the P00AA Code

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