A few small tweecer questions

Discussion in '94-95 5.0 Tuning' started by OrangeMustangGt, Jul 29, 2009.

  1. OrangeMustangGt Founding Member

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    How do I get my idle to drop faster while moving? I tried increasing dashpot decay rate, which seemed to work, but when im moving it still hangs around 2,000 rpm for a while before it drops to a normal idle

    How do i get rid of the lean spike when i get into the gas? Grady told me about changing the intake manifold volume, however the new tweecer does not seem to have that table


    How do i get rid of a bucking at low rpm/load when coming back into the throttle after a coast? thanks!
  2. tealstang67 New Member

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    For my lean bucking issues i played with hego bias and hego delay for the long tubes. Seemed to work well.
    Not sure on the idle issues mine seems to idle about 1400 when coming up to a light, When the vss see's no movment drops to 800.
  3. final5-0 Mustang Master

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    The bucking while at low load can be sometimes be improved upon
    by dialing back a bit of spark in the Closed Loop spark table :)

    Just use your dlogs to find the problem condition and adjust the load row
    that matches the dlogs ;)

    I have no knowledge of the new software :shrug:
    but
    I can tell you this :D

    The manifold volume you speak of would not be seen in a table
    as it was a scalar
    or
    at least it was on the older software :shrug:

    As for the rpm's hanging

    One thing I found about that nagging issue is
    If you have your tb blade open too far ........................

    The hanging idle and lots of other idle or low load conditon stuff
    won't respond as you wish to your tweecs :(

    Grady
  4. pirotec354 New Member

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    You could try adjusting the injector pulswidths up just a tad for the bucking

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