OBD-II code · Powertrain (generic)
P0111 Intake Air Temperature Sensor Range/Performance
The intake air temperature (IAT) sensor reading does not change plausibly with engine warm-up or after driving begins. Many vehicles share the IAT into the MAF housing; on those, MAF replacement also replaces IAT.
Is it safe to drive with P0111?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor drifting outside specification
- PossibleSensor element coated with oil or dirt
- Less likelySensor element aged beyond calibration window
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.2–1 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Intake Air Temperature Sensor, Mass Air Flow Sensor
Related codes
- P010EMass or Volume Air Flow Sensor B Circuit Intermittent/Erratic
- P010FMass or Volume Air Flow Sensor A/B Correlation
- P0110Intake Air Temperature Sensor Circuit Malfunction
- P0112Intake Air Temperature Sensor Low Input
- P0113Intake Air Temperature Sensor High Input
- P0114Intake Air Temperature Sensor Intermittent
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.