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Need to know how to adjust the idle on a Holley 670 CFM TBI!

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Batmanjr, Nov 10, 2003.

  1. Batmanjr

    Batmanjr 1/2 ton status

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    Title says it all! I'm high idling like a son of a gun and need to fix it fast! I searched but to no avail the exact steps to take! I know how to adjust the timing, but it's firing very nice and the power band is right where i want it! How do I simply turn down the idle!????

    Second of all, Will the computer not allow the tranny to engage is the idle is too high? Just curious! I want to fix the idle problem first and then see if it's messing with the tranny... It won't engage sometimes now that I fixed the vacuum sensor and vacuum lines! THanks all! /forums/images/graemlins/thumb.gif
     
  2. BurbinOR

    BurbinOR 3/4 ton status

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    If in fact you have the stock TBI replacement...........try this. IAC adjustment...............

    If that is for TPI only, go to www.thirdgen.org and check out the tech articles and/or TBI board.

    HTH /forums/images/graemlins/laugh.gif
     
  3. Sandman

    Sandman 3/4 ton status Author

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    If its like the one I had, there is a small screw housing in the front near the linkage. I didnt see it at first either.
     

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