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Thread: Throttle not opening all the way?

  1. #1

    Throttle not opening all the way?

    Working on a 2014 Silverado. While tuning WOT I notice the commanded throttle is 100%. But on the first rip it was 90%. Did some fuel tweaks and on the next rip it was 87%. Both times commanded was 100%. Is the throttle not opening all the way or am I looking at the wrong PID? I thought I read somewhere about this issue but I cant seem to come across that post again. Thanks

  2. #2
    Tuning Addict 5FDP's Avatar
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    May 2012
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    The standard TPS channel only reads like 84 or 88% on the GEN 4/GEN 5 computers.

    Which channel are you logging?
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.