Throttle Position (TP) Sensor

TP sensor incorporates a potentiometer, which varies output voltage in response to changes in throttle position. This information is relayed to ECM as input voltage signals on 3-terminal TP sensor harness. ECM determines idle position of throttle valve from signals received from TP sensor. TP sensor can also inform ECM of opening and closing speeds in throttle valve. Throttle position sensor is attached to throttle body housing and actuated with movement of accelerator pedal.