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Thread: Touchy throttle, especially in reverse

  1. #1
    Advanced Tuner
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    Touchy throttle, especially in reverse

    Would this be a driver demand adjustment? It has stalled on me a number of times, always in reverse. give it a little gas, it lunges backwards and stalls. Seems worse when engine is cold, however it does it when warm also. When in drive, if you give it gas in a parking lot and let off, it almost cuts out but wont stall. Would love to get this resolved. Thanks in advance!

  2. #2
    Quote Originally Posted by Estep40511 View Post
    Would this be a driver demand adjustment? It has stalled on me a number of times, always in reverse. give it a little gas, it lunges backwards and stalls. Seems worse when engine is cold, however it does it when warm also. When in drive, if you give it gas in a parking lot and let off, it almost cuts out but wont stall. Would love to get this resolved. Thanks in advance!
    Hard saying without looking at a data log of the correct channels.

  3. #3
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    I will get that today, if it acts up with the scanner on it lol

  4. #4
    Senior Tuner edcmat-l1's Avatar
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    You've been a member for 3 years and you have a couple hundred posts. You'd think by now you'd know we need vehicle specs, mods, tune file and data log. You've provided none of that. You haven't even specified car or truck. How is anyone supposed to even make a guess???

    EFI specialist
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  5. #5
    Advanced Tuner
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    Quote Originally Posted by edcmat-l1 View Post
    You've been a member for 3 years and you have a couple hundred posts. You'd think by now you'd know we need vehicle specs, mods, tune file and data log. You've provided none of that. You haven't even specified car or truck. How is anyone supposed to even make a guess???

    You are very correct. pretty dumb on my part. Anyways, vehicle is a 2014 Silverado 5.3/6L80 with a LSXceleration stage 2.1 cam, Zl1 converter, L86 intake/TB. I will get the log today now that my tuning PC is up and running again.

    Heres the tune Im running now though.

    july241.hpt

  6. #6
    Tuning Addict
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    This has the effective area and throttle tables for the l86 tb in it. Just open and flash. You'll need to make sure to leave the throttle settings alone going forward and probably rework your torque model a little for idle.
    Attached Files Attached Files
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    ~Greg Huggins~
    Remote Tuning Available at gh[email protected]
    Mobile Tuning Available for North Georgia and WNC