Escort ZX2 L4-2.0L DOHC VIN 3 (2000)
Throttle Position Sensor: Description and Operation
Throttle Position Sensor
Throttle Position (TP) Sensor
The Throttle Position (TP) sensor is a rotary potentiometer in which the PCM determines four operating modes from the TP sensor signal. These are:
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closed throttle (idle or deceleration)
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part throttle (cruise, moderate acceleration)
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Wide Open Throttle (WOT) (maximum acceleration)
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throttle angle rate.
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.