Description

The Throttle Position Sensor (TPS) is a rotary potentiometer that provides a voltage signal to the Powertrain Control Module (PCM) that is linearly proportional to the throttle plate/shaft angular position. The TP sensor has a three-blade electrical connector that is plated. The plating increases the corrosion resistance on terminals and increases the connector durability. The TP sensor is mounted on the throttle body and is non-adjustable. As the TP sensor is rotated by the throttle shaft, four (4) operating conditions are determined by the PCM from the TP sensor.

The four (4) vehicle operating conditions are:

^ Closed throttle (idle or deceleration)

^ Part throttle (cruise, moderate acceleration)

^ Wide open throttle (maximum acceleration, de-choke on crank and A/C shut-off)

^ Throttle angle rate.