XT-6 2WD L6-2.7L SOHC (1989)
Throttle Full Close Switch: Description and Operation
Throttle Position Sensor
PURPOSE
The throttle sensor informs the ECU of throttle angle and speed of application as well as idle position. This information is used to correct for
acceleration and provide a reference point for the ECU.
LOCATION
The sensor is mounted to the throttle body on the intake manifold.
CONSTRUCTION
The throttle position sensor contains both a potentiometer (variable resistor) and an idle switch.
OPERATION
Whenever the ignition is ON, the throttle sensor returns a signal to the ECU. The unit functions as a throttle operated potentiometer. The ECU
sends a known voltage signal to the unit. Sensor resistance is based on throttle angle. Depending on resistance, an output signal is sent to the ECU.
