Throttle Position (TP) Sensor
WARNING: This page is about a different car, the 1995 Ford Windstar. However, it is still accessible from the selected car via links, so may be relevant.
TP sensor is a rotary potentiometer. TP sensor monitors throttle plate opening. Its signal to the PCM is proportional to throttle plate opening angle and rate of angle change. The TP sensor signal affects air/fuel ratio, injector timing, idle speed, EGR flow and ignition timing. The TP sensor is mounted on throttle body, at throttle plate rod.