OBD-II Generic P2112: How to Fix It

Q: Can I drive with error code P2112?

It's not recommended. The vehicle may enter limp mode, reducing speed and power, and could stall, creating a safety risk.

Q: How much does it cost to fix P2112?

DIY cleaning costs around $10 for cleaner. Replacing the throttle body can cost $100-$300 for the part plus labor if done by a shop.

Q: What causes P2112?

Common causes include carbon buildup on the throttle plate, a faulty throttle actuator motor, or a bad throttle position sensor.

Q: Will clearing the code fix P2112?

Clearing the code may turn off the check engine light temporarily, but if the underlying issue isn't fixed, the code will return.

Q: Do I need to reprogram the throttle after replacement?

Yes, many vehicles require a throttle relearn procedure after replacing the throttle body to match the idle and pedal position. This can often be done with an OBD2 scanner or a specific key cycle sequence.

Abstract

Error code P2112 indicates the throttle actuator control system is stuck closed, meaning the throttle plate isn't opening as commanded by the engine computer. This can cause reduced power, limp mode, or stalling. Common causes include a faulty throttle body, carbon buildup, or a bad throttle position sensor.