P0113 Code: Intake Air Temperature (IAT) Sensor Circuit High Input
🟢 Low severity · drivable
Safe to drive. The computer just gets a wrong intake-air-temperature reading, which may cause slightly rich running.
What P0113 means
The intake air temperature (IAT) sensor is reporting an abnormally high voltage (or an open circuit), which the computer reads as very cold intake air. The IAT helps the computer adjust the fuel mixture for air temperature.
Symptoms
- Check engine light is on
- Possible slightly rich running
- Possible hard starting in some conditions
- Often no noticeable symptoms
Common causes
- most common: Faulty IAT sensor (open circuit)
- common: Loose or corroded IAT connector
- less common: Damaged wiring to the IAT sensor
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Inspect and clean the IAT sensor connector | Yes | $0–10 |
| Replace the IAT sensor | Yes | $20–80 |
| Repair damaged IAT sensor wiring | Mechanic | $50–150 |
Frequently asked questions
Can I drive with a P0113 code?
Yes. It's a minor sensor fault. The engine may run slightly rich, but it's not an emergency.
What is the most common cause of P0113?
A faulty IAT sensor or a loose connector. It's usually a cheap and simple fix.
How much does it cost to fix a P0113?
Typically $20–$80 for a new IAT sensor, which is usually the whole fix.
Related codes
P0112
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P0110P0110 Code: Intake Air Temperature Sensor 1 Circuit
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.