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high idle

This is a discussion on high idle within the Computer & Tuning forums, part of the LSx Technical Help Section category; ...

  1. #1
    cutting and welding mark21742's Avatar
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    hugger orange
    2004

    high idle

    I just put a 3,800 stall in the goat. 220/224 .570/.580 112lsa cam. I have my idle set at 775 rpms, it idle good anf stays there but in gear and moving it wants to idle all the way up to 1300+ rpms.....throttle cracker is zeroed out. am I missing something? IAC is sitting at 10-12 when idling at 775, would cranking the idle stop set screw closed alittle fix this or is it in the tune?

  2. #2
    TunedbyFrost.com Tuner Frost's Avatar
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    Adjust it so that the blade closes some. Look for 55-75 steps at hot idle. Once you do this, you will want to re-do your idle airflow tuning. Additionally, while you may get by with the TC table zero'd out, I like to add 1.5-1.7g in the 400 RPM column everywhere except 0 MPH as a kind of a 'catch' in case you ever have a big dip while moving. It is helpful when beginning tuning and definitely can't hurt to leave in there.

  3. #3
    cutting and welding mark21742's Avatar
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    hugger orange
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    ok thank you again!

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