Throttle Position Sensor: Description and Operation

Fig. 36 Throttle Angle Sensor And Voltage Output Chart:

The throttle angle sensor is a linear potentiometer. It is connected to the primary throttle valve shaft. As the throttle angle changes, the throttle angle sensor varies the voltage signal to the ECU. This signal along with the Manifold Absolute Pressure Sensor (MAP) are used by the ECU to determine engine load.