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Thread: throttle only opening 38% please help

  1. #1
    Tuner
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    throttle only opening 38% please help

    can I get someone to look at this tune and maybe help explain why my tps only shows 38%. a little about the truck 2010 silverado orignal came with the 4.8 now has 6.0 ls2 with ls3 heads, lsa cam (for twin turbos in future), shorty 1 7/8 headers 4 in exhaust, 60 lb injectors, slp fabricated intake, cai. 3.73 rear gears 4l70 trans. truck weighted in at 6400 lbs and ran a 15.033 at 97 mph with a rt of .024. here ia a copy of the tune and log of pass. any help would be greatly apreciated.



    track 3.hpltrack3.hpt

  2. #2
    Tuner
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    I think i might have found the cause but don't know the fix or how to log.I think the ECM was using MAP B in the ETC desired area. When I made the pass I had the tow/haul button depressed to put the transmission into performance mode, not sure if this tells the ECM to used the MAP B or not but that is the only place that I see where the pedal can be at 100% and the ETC at 45% or below. If someone can chime in and let me know at least how to log such an event as I don't see in the new scanner. thank you

  3. #3
    Tuning Addict
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    Can't open the tune. Setup in Remote Tuning Network...
    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]
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  4. #4
    Tuner
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    not sure how to do such I see where just don't know what numbers to enter.

  5. #5
    Senior Tuner mowton's Avatar
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    Got you PM but open file and then go to Edit>Calibration Details>Remote Tuning. Make sure and clear master/slave (button). Also go to Controllers and make sure the Security Key says (unlocked). If locked, double click like it says to unlock.

    Ed M
    2004 Vette Coupe, LS2, MN6, Vararam, ARH/CATs, Ti's, 4:10, Trickflow 215, 30# SVO, Vette Doctors Cam, Fast 90/90, DD McLeod, DTE Brace, Hurst shifter, Bilsteins etc. 480/430

    ERM Performance Tuning -- Interactive Learning ..from tuning software training to custom tunes
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  6. #6
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    OK thank you Ed will do and try and repost tune at my next break

  7. #7
    Tuner
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    unlocked tune

    ok here is the tune again hopefully people can see please let me know if this does not work thank you

    track3.hpttrack 3.hpl

  8. #8
    Tuner
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    Anyone have a clue what to look at? PLEASE !!!!! I will be going back to the track this weekend and trying again and would really like to know what to look at to get WOT.

  9. #9
    Tuner in Training
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    Did you check and see if the throttle body is actually opening only 38%? With the car off, and the key on - press the pedal all the way down and see if its going to 100%. My LS2 E40 corvette only shows 88% when its wide open. This is normal for it though.

  10. #10
    Tuner
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    Yes I can drive down hwy and stomp it and will give 99%. I have visually looks at it with engine off and opened 90 degrees