Intake Temperature High - How To Discuss
Matthew Shields
Updated on May 20, 2026
Intake Temperature High
What does it mean when the recording temperature is high?
A stored code of P0127 means that the fuel control module (PCM) has detected an input from the intake system temperature sensor (IAT) circuit indicating that the temperature or voltage of the circuit is too high. The IAT sensor can also be integrated into the MAF sensor housing.So what are the symptoms of a broken intake temperature sensor?
Symptoms of poor or incorrect sensor air supply temperature- Poor acceleration performance. One of the first symptoms of a vehicle in the event of a charging temperature sensor failure is a noticeable reduction in acceleration performance.
- Cold starting problems.
- Reduced fuel consumption.