P0113
Intake Air Temperature Sensor 1 Circuit High Bank 1
Fuel & air metering
Generic OBD-II
Low
What it means
P0113 means the intake air temperature sensor circuit is reading a higher-than-expected voltage, which the ECM interprets as an implausibly cold intake temperature — typically caused by a failed sensor or an open in its wiring. It won't leave you stranded, but the wrong air-temp reading can skew fuel mixture, hurting economy and cold-start smoothness.
Low
Can I keep driving? Safe to keep driving — the car runs, though fuel trims may be off, so expect slightly worse economy and mild hesitation until it's fixed.
Common symptoms
What you'll notice
- Check-engine light on
- Slightly reduced fuel economy
- Mild hesitation or rough running
- Occasionally harder cold starts
Common causes
Most likely first
- Failed intake air temperature sensor (reading permanently cold)Likely
- Open or broken wiring in the sensor signal circuitCommon
- Corroded or loose connector at the sensorCommon
- Failed engine control module (rare)Less often
How to diagnose & fix
Work through it in order
- Read the live IAT value with a scan tool — a high-input fault usually shows an implausibly cold reading.
- Inspect the sensor connector and wiring for corrosion, damage, or an open circuit.
- Back-probe the signal wire; if voltage stays high with the connector bridged, the wiring or ECM side is at fault, otherwise replace the sensor.
- Replace the IAT sensor if it reads out of range with good wiring. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0113?+
Yes. The engine will run and won't stall from this code — you'll just see mildly worse fuel economy and possibly slightly harder cold starts until it's repaired.
Can I just clear P0113?+
You can, but if the sensor or its wiring is genuinely faulty the code returns once the ECM re-checks the circuit.
Related codes
Often seen with P0113
Read & clear P0113 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