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Thread: RPM Hanging issue PLEASE HELP!

  1. #1

    RPM Hanging issue PLEASE HELP!

    Hello, I am a little new to HP Tuners well at least to the tuning part of it. I have done many swaps and used HP Tuners to make it all work, but this swap is a different animal so I am having to tune it a little to get it acting proper. So I have a L33 from a 2006 Silverado that is being ran by a Trailblazer E40 ECM in my 2006 Colorado Manual. I am having a rev hang issue and it does not go away after a pull until I stop. I just need a little guidance on what I should mess with or what to check. I have been messing with it for 3 days now, after a busted throttle body and finding a bad injector I have had to start back over. I have finally got it to a point where the fuel trims are correct, the engine is running good and has good power. This is the only issue I am having now. Tune is attached, I am trying to get a log of it doing it but my laptop wont stay alive for more than 5 minutes.

    NEW FILE.hpt

  2. #2
    Senior Tuner edcmat-l1's Avatar
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    Aug 2006
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    Post a data log.

    EFI specialist
    Advanced diagnostics, tuning, emissions
    HPtuners dealer and tech support
    email=[email protected]

  3. #3
    Tuning Addict blindsquirrel's Avatar
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    Apr 2017
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    Meridian MS
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    7,643
    Auto trans ECM OS with no TCM? You should have used a 2006 SSR instead of Trailblazer. Trailblazer was never built with a manual trans option, SSR was.