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.
Home/Mercury/Sable/Mercury Sable III (1995-1999)/Repair manual/Theory & Operation/Throttle Position (Tp) Sensor
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