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Home >> Saturn >> 2003 >> L200 L4-2.2L VIN F >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Description and Operation >> Component Descriptions >> Throttle Position (TP) Sensor
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Throttle Position (TP) Sensor




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
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