P0113
Intake Air Temperature Sensor High Input
The IAT signal voltage is above threshold, which the ECU interprets as an implausibly cold intake (open-circuit-like behaviour). Usually open wiring or a sensor that has failed open.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: easy
What we see in the workshop
ON FORD ECOBOOST
Intake air temperature high on a turbo car in UAE summer can be genuine heat soak rather than a sensor fault. We check live data against ambient before replacing anything.
Common causes
Ordered by how often each turns out to be the cause.
- Open circuit in sensor or wiringCommon
- Corroded sensor connectorPossible
Parts involved
- Intake Air Temperature Sensor
- Intake Air Temperature Sensor Wiring
P0113 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.