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Fuel Problem and Throttle Position Sensor??

This is a discussion on Fuel Problem and Throttle Position Sensor?? within the General Help forums, part of the LSx Technical Help Section category; I'm still trying to find out how I can solve my fuel problem... and no i still haven't checked my ...

  1. #1
    Rice Hungry GottaHaveLS1's Avatar
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    1999 Trans Am M6

    Fuel Problem and Throttle Position Sensor??

    I'm still trying to find out how I can solve my fuel problem... and no i still haven't checked my fuel pressure (i will tomorrow). a friend of mine mentioned that you can toy with a throttle position sensor to get more fuel at WOT. i'm not sure if this is true for fuel injected cars and i don't even know where it is on my 99 T/A. does anyone know anything about this.

    Just to let you know, i've replaced my fuel filter and fuel pump (the sock on it was filthy) and still haven't solved my problem. my tuner showed me on his laptop where i was leaning out at WOT. AF ratio was around 12.8:1 or something like that. any advice is appreciated.

  2. #2
    Junior Member Khaotic's Avatar
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    2000 SS Camaro

    throttle postion

    The tps itself cannt add fuel but the tps tells the computer exaclty where the throttle blade is so that it can be determined whether your are attempting to idle, cruise at a steady state or accelerate or declerate.

    But it is important to know exactly what the threshold is between closed throttle and part throttle for calibration to ensue that the computer actually uses the idle tables.

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