P0114 — Intake Air Temperature Circuit Intermittent
Drive with caution — fix soon.
What P0114 means
This code means the intake air temperature sensor signal is dropping out or changing erratically rather than failing completely, which usually points to a loose connector or intermittent wiring fault. Common fixes include securing or repairing the wiring and connector, cleaning corroded pins, or replacing the IAT sensor. Because intermittent faults can be tricky to pin down, a careful inspection of the harness is often the key.
Common symptoms
- Check engine light turns on and off
- Intermittent rough idle or hesitation
- Occasional drop in fuel economy
- Brief hard-start episodes
- Symptoms that come and go unpredictably
Common causes
- Loose or intermittent sensor connector
- Frayed or chafed wiring in the IAT circuit
- Corroded connector pins causing dropouts
- Intermittently failing IAT sensor
- Vibration-related wiring fault near the engine
Typical repair cost
$80 – $260
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0114 code?
Usually yes, but the intermittent signal means the car can occasionally idle rough or hesitate. It's safe for short trips and normal commuting, though the underlying wiring problem can worsen. Getting it inspected soon helps avoid a sudden no-start or a more stubborn fault.
How much does it cost to fix a P0114?
Most repairs cost between $80 and $260. A simple connector or wiring repair sits at the lower end, while sensor replacement plus diagnostic time pushes it higher. Intermittent faults sometimes take extra diagnostic effort to locate.
Is a P0114 code serious?
It's moderate in severity. The intermittent signal won't usually strand you, but it can make the engine run inconsistently and may signal worsening wiring. It's best fixed before the fault becomes constant.
Why is a P0114 harder to diagnose than other IAT codes?
Because the fault comes and goes, the problem may not show up while a technician is testing the car. Mechanics often wiggle-test the wiring and connector to recreate the dropout. This intermittent behavior is exactly what the code is reporting.