B Series Truck 4WD L4-2606cc 2.6L SOHC (1992)
Throttle Position Sensor: Description and Operation
^ The Throttle Sensor is a potentiometer attached to the throttle body and splined to the throttle shaft. The potentiometer rotates with the shaft as the
throttle opens and closes.
^ Varying potentiometer resistance alters the reference voltage supplied by the ECU, allowing it to read throttle valve opening angle.
^ This input is used in ECU calculations for outputs such as fuel injection quantity, pressure regulator solenoid valve control and A/C cut-off.
^ ECU reference voltage is approximately 0.5V at idle and 4.3V at wide open throttle.
