P0114 Code: Intake Air Temperature Sensor 1 Circuit Intermittent
🟢 Low severity · drivable
Usually drivable without major problems, but the code may keep coming back until the loose connection is fixed.
What P0114 means
The IAT sensor signal drops out or changes suddenly while driving. The computer sees intermittent temperature readings. Loose connections and damaged wiring are common causes.
Symptoms
- Check engine light on
- Intermittent rough idle
- Occasional hesitation
- Fuel economy that varies
Common causes
- most common: Loose or corroded connector
- common: Damaged wiring
- common: Faulty IAT sensor
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Clean and reseat the connector | Yes | $0–20 |
| Repair damaged wiring | Yes | $20–80 |
| Replace the IAT sensor | Yes | $20–80 |
Frequently asked questions
Can I drive with P0114?
Yes, usually without major problems, but the code may keep coming back until the loose connection is fixed.
Why is the reading intermittent?
A loose plug, chafed wire, or failing sensor makes the signal drop in and out.
Can I just tighten the connector?
Often, yes. Unplug it, check for corrosion, and snap it back in firmly.
Related codes
P0110
P0110 Code: Intake Air Temperature Sensor 1 Circuit
P0111P0111 Code: Intake Air Temperature Sensor 1 Range/Performance
P0112P0112 Code: Intake Air Temperature Sensor 1 Circuit Low
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.