OBD2 Error Code P0111: How to Fix It

Q: Can I drive with P0111 error code?

You can drive short distances, but the engine may run poorly with reduced fuel economy and performance. Extended driving with this code can cause damage to the catalytic converter and increase emissions.

Q: What causes P0111 error code?

Common causes include a faulty intake air temperature sensor, damaged wiring or connectors, contamination on the sensor, or in rare cases, problems with the engine control module.

Q: How much does it cost to fix P0111?

DIY repair costs $20-80 for a new IAT sensor. Professional repair typically costs $150-300 including labor. Costs vary by vehicle make and sensor location accessibility.

Q: Will P0111 cause my car to fail emissions testing?

Yes, P0111 will likely cause your vehicle to fail emissions testing. The error must be resolved and the readiness monitors must complete before passing inspection.

Q: How do I prevent P0111 from happening again?

Replace air filters regularly, avoid aftermarket air intake modifications, keep the engine bay clean, and address any oil leaks that might contaminate sensors.

Abstract

OBD2 error code P0111 indicates a problem with your intake air temperature (IAT) sensor circuit, meaning the sensor readings are outside the normal range. This sensor helps your engine's computer determine the proper air-fuel mixture for optimal performance and emissions.