A throttle position sensor (TPS) is a sensor used to monitor the air intake of an engine. The sensor is usually located on the butterfly spindle/shaft, so that it can directly monitor the position of the throttle.
How do I know if my throttle position sensor is bad?
Symptoms of a Bad or Failing Throttle Position Sensor
- Car won't accelerate, lacks power when accelerating, or accelerates itself. ...
- Engine won't idle smoothly, idles too slowly, or stalls. ...
- Car accelerates, but won't exceed a relatively low speed, or shift up.
What happens when you unplug throttle position sensor?
If the TPS is not adjusted correctly as evidenced by a 500rpm idle, and hesitation with initial acceleration, unplugging the TPS connector should then cause a correct idle, and a normal acceleration.
