Excursion 2WD V8-5.4L SOHC VIN L (2000)
Throttle Position Sensor: Description and Operation
Throttle Position Sensor
Throttle Position (TP) Sensor
The TP sensor:
^
sends the PCM a signal indicating the throttle plate angle.
^
is the main input to the PCM from the driver.
The Throttle Position (TP) sensor is a rotary potentiometer sensor that provides a signal to the PCM that is linearly proportional to the throttle
plate/shaft position. The sensor housing has a three-blade electrical connector that may be gold plated. The gold plating increases corrosion resistance
on terminals and increases connector durability. The TP sensor is mounted on the throttle body. As the TP sensor is rotated by the throttle shaft, four
operating conditions are determined by the PCM from the TP. Those conditions are closed throttle (includes idle or deceleration), part throttle
(includes cruise or moderate acceleration), wide open throttle (includes maximum acceleration or de-choke on crank), and throttle angle rate.
