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Thread: Why doesn't my 07 corvette ever hit 100% TPS at full throttle?

  1. #1
    Lifetime Member mvvette97's Avatar
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    Default Why doesn't my 07 corvette ever hit 100% TPS at full throttle?

    Doing some logging and tuning today on my 07 corvette and just noticed in the log that when wide open it never hits 100% throttle position. Is that how it is supposed to be? Here is my log. It shows it maxes out about 88%. Is this normal?
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    Lifetime Member mvvette97's Avatar
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    After some searching it seems I may not have the correct throttle position PID selected. Anybody know what PID I need?

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    ETCTP or similar I believe.
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    Lifetime Member Ninety8C5's Avatar
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    Try GM.TPDES

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    Lifetime Member mvvette97's Avatar
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    I just went out and selected all those type of pids and turned the ignition on and it still maxed at 88% when pushed to the floor. I thought possibly it was the aftermarket throttle controller so I unhooked it and put it back to original and still the same thing

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    Lifetime Member Move'n Up's Avatar
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    You may just have a bad TPS sensor or it may need to be calibrated if it's ever been replaced or removed for any reason.
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    Lifetime Member mvvette97's Avatar
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    If it was bad wouldn't it throw a code?

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    Lifetime Member minytrker's Avatar
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    88% is WOT. Take your air intake off and with key on engine off have someone hold it to the floor, it show 88% and the TB will be all the way open.

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    If you log TPS %, then you won't see a value over 88% (as it is calculated from the voltage).

    Log:

    GM.APP - for the position (%) of the APP (accelerator pedal)
    GM.ETCTP - for the position (%) of the throttle body

    Both of these PIDs range from 0% to 100%.

  10. #10
    Lifetime Member mvvette97's Avatar
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    I tried to log those you have listed but it didn't do anything. Kinda strange.

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