OBD2 Error Code P0112: How to Fix It

Q: Can I drive with OBD2 code P0112?

You can drive short distances with P0112, but it's not recommended for extended periods. The faulty sensor can cause poor fuel economy, rough idling, and potential engine damage if left unrepaired.

Q: How much does it cost to fix P0112?

DIY repair typically costs $20-80 for a new IAT sensor. Professional repair can range from $150-300 including labor, depending on sensor location and vehicle complexity.

Q: What causes P0112 error code?

P0112 is most commonly caused by a faulty intake air temperature sensor, damaged or corroded wiring, loose connections, or rarely, a problem with the engine control module (ECM).

Q: Will P0112 cause my car to fail emissions test?

Yes, P0112 will typically cause your vehicle to fail an emissions test since it's an active diagnostic trouble code that affects engine management and emissions control systems.

Q: How do I prevent P0112 from happening again?

Regular maintenance including air filter replacement helps prevent debris contamination. Avoid aftermarket air intake modifications that might affect sensor operation, and address any engine bay moisture issues promptly.

Abstract

OBD2 error code P0112 indicates that your vehicle's intake air temperature (IAT) sensor is sending a signal that's lower than expected to the engine control module. This sensor measures the temperature of air entering the engine, and when it malfunctions, it can cause poor fuel economy, rough idling, and reduced engine performance.