P0114
Intake Air Temperature Sensor 1 Circuit Intermittent Bank 1
Fuel & air metering
Generic OBD-II
Low
What it means
P0114 means the intake air temperature (IAT) sensor signal on bank 1 is cutting out or jumping erratically rather than reading steadily. The ECM uses intake air temperature to fine-tune fueling and timing, so the effect on driving is usually minor. An intermittent fault like this most often traces to a loose connector or a chafed wire.
Low
Can I keep driving? Safe to drive in practice — effects are usually minor (small changes in economy or smoothness); the intermittent signal is worth fixing but rarely leaves you stranded.
Common symptoms
What you'll notice
- Check-engine light (may come and go)
- Occasional rough running or brief hesitation
- Small drop in fuel economy
- Often no noticeable symptom at all
Common causes
Most likely first
- Loose or corroded intake air temperature sensor connector (most common for an intermittent fault)Likely
- Chafed, broken, or intermittently shorting signal wireCommon
- Faulty intake air temperature sensorCommon
- Less commonly, an ECM/PCM faultLess often
How to diagnose & fix
Work through it in order
- Scan and monitor the live intake air temperature value while wiggle-testing the connector and harness for signal dropouts.
- Clean and reseat the sensor connector; repair any corroded terminals.
- Inspect the signal wiring for chafing or intermittent shorts.
- Replace the intake air temperature sensor if the reading cuts out, then clear and retest.
FAQ
Quick answers
Is it safe to drive with P0114?+
Yes. The intake air temperature sensor only fine-tunes fueling, so an intermittent fault has little effect on driving. Fix it at your convenience.
Can I just clear P0114?+
You can, but an intermittent fault usually returns. Because it comes and goes, focus on finding the loose connector or chafed wire behind it.
Related codes
Often seen with P0114
Read & clear P0114 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX