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Throttle Position Sensor Voltage

This is a discussion on Throttle Position Sensor Voltage within the General Help forums, part of the LSx Technical Help Section category; What is the correct TPS voltage. I ported my throttle body and it seemed to have changed the TPS - ...

  1. #1
    Junior Member SilverFish's Avatar
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    2000 Z28

    Throttle Position Sensor Voltage

    What is the correct TPS voltage. I ported my throttle body and it seemed to have changed the TPS - 554 was where I was at, and it I raised a little, and it seemed more responsive - does anybody have insights or experience with this stuff ????

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    Member Goldcuffs's Avatar
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    2000 Trans Am

    If it's a 3 wire sensor which it should be, 1 wire is ground, 1 wire is a 5v reference, and 1 wire is your signal return and at closed throttle should be .2 to .8v or somewhere in between. At full throttle it should be close to 5v.

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