L200 L4-2.2L VIN F (2002)
Throttle Position Sensor: Description and Operation
The TP sensor is located on the throttle body connected to the throttle plate shaft. The TP sensor is a potentiometer that varies resistance according to
changes in throttle plate position. The PCM measures the signal voltage from the TP sensor, which is a reduced value of the PCM 5 volt reference. The
voltage ranges from 0.35 (±0.2) volts at 0% throttle plate opening to 4.65 volts at wide open throttle.
The TP sensor is used for:
^
Clear flood mode
^
Deceleration enleanment
^
Calculation of engine load
^
IAC valve opening for throttle following
^
Idle determination
^
Transaxle shifting/TCC operation
^
Wide open throttle conditions
