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Thread: Lnf choppy during NLS

  1. #1
    Potential Tuner
    Join Date
    Nov 2008
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    2

    Lnf choppy during NLS

    hey guys ive been working on some tunes for the lnf and i have found that with both tunes during a NLS it sputters and bogs and is choppy. is anyone else getting this. last time i got it with my orig. tune on the way back from mir (imports vs domestics) i burnt an exhaust valve , think it was leaning out on top end pulls like 65-150ish. too much heat for to long. With that tune i went 13.1 but i had to reg shift 1-2 and take it easy on other ones. did 314hp and 355wtq on mustang dyno. Any help would be awsome. thanks guys. EDIT: even once in a while it does it with stock tune. thanks again

  2. #2
    Had the same problem on mine, switching to NGK 3787's and zeroing out my Injector Disable table alleviated the issue completely.

  3. #3
    Senior Tuner BackyardTurbo_FTW's Avatar
    Join Date
    Jul 2009
    Location
    East Suckburg, PA
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    1,163
    Shift sooner. The tach is delayed.

  4. #4
    Advanced Tuner
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    Jul 2009
    Location
    Winfield/Ofallon MO
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    agreed, tach is slow, shift sooner.

  5. #5
    Potential Tuner
    Join Date
    Nov 2008
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    Thanks guys I'm goin to try ngks and zero out that table as far as shifting to late I've been shifting around 58 ill play with that too I tried it today and it work perfect only happens at the track thanks again.

  6. #6
    Advanced Tuner
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    Jul 2009
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    Winfield/Ofallon MO
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    I couldn't nls at track 1-2 very easily either, 2-3 and 3-4 is fine.

  7. #7
    Tuner
    Join Date
    Feb 2010
    Location
    Sandusky, Ohio
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    107
    not from a tune perspective but make sure your completely warmed up. If my car isn't at least 190 it will sputter every time. Also I shift at 6000 on the tack and in the logs it's about 6300.
    09 Cobalt SS/TC