OBD-II code guide
P0113 Intake Air Temperature Sensor Circuit High
P0113 means the intake air temperature signal is higher than expected electrically, often indicating an open circuit.
What it means
The computer sees an intake air temperature reading that is implausibly cold or out of range depending on sensor design.
Common symptoms
- Check engine light
- Hard starting in some weather
- Poor fuel economy
- Rough idle
- Usually mild drivability symptoms
Likely causes
- Unplugged sensor
- Damaged wiring
- Faulty IAT sensor
- MAF assembly issue on combined sensors
- Connector corrosion
First checks
- Check whether the IAT sensor is part of the MAF.
- Inspect connector pins.
- Look for recent air filter or intake work.
- Compare live temperature reading to ambient air.