What usually causes it
- A failed throttle position sensor or pedal sensor
- A dirty throttle body, the housing around the throttle flap
- A loose plug or damaged wiring
- A failing throttle motor
P0120Starts at: Get it checked this week
Throttle or gas pedal sensor circuit problem
The computer found a problem with the sensor that tells it how far the throttle is open or how far you press the gas pedal. The throttle is the flap that lets air into the engine.
What to watch for
- The car suddenly has little power and the engine will not speed up
- Stalling or a rough idle
- The gas pedal feels dead, or the car surges
Can I keep driving?
We rate P0120 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
Quick answers about P0120
What does P0120 mean?
Throttle or gas pedal sensor circuit problem. The computer found a problem with the sensor that tells it how far the throttle is open or how far you press the gas pedal. The throttle is the flap that lets air into the engine.
Can I keep driving with P0120?
We rate P0120 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
What usually causes P0120?
The most common causes, in order: A failed throttle position sensor or pedal sensor; A dirty throttle body, the housing around the throttle flap; A loose plug or damaged wiring; A failing throttle motor.
Estimates only. A mechanic should confirm. The same code can mean slightly different things on different cars; the app explains it for your exact year, make, model and mileage.