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Thread: Electronic Throttle IAC relationship

  1. #1
    Senior Tuner Higgs Boson's Avatar
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    Electronic Throttle IAC relationship

    Here is an idle scan I did, my car is an 01 Z06/408 with a ported LS2 TB and FAST 90. The IAC is steady at 310 but the scan seemed to work and the car idles well. Do i need to do anything with the IAC table/scan for something? I don't know what to do/what it means. thanks.

  2. #2
    Tuner Fast9C1's Avatar
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    DBW doesn't have an IAC motor

  3. #3
    You logged the wrong PDI. Log IAC Desired Position and you will see what you want
    Paul
    Modern Muscle Motorsports
    www.modernmusclemotorsports.com
    Custom tuning using Diablosport, SCT, HP Tuners, Tuner Cat, FAST & Holley
    Dynojet 224x mobile dyno


  4. #4
    Senior Tuner 5_Liter_Eater's Avatar
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    The electronic throttle vehicles do not have an IAC. To tune the idle look for RussK's gen 3 idle tuning config and procedure. Basically just start it up cold and let it warm up while logging desired idle airflow or something like that. Then just copy that into the tune.
    Bill Winters

    Former owner/builder/tuner of the FarmVette
    Out of the LSx tuning game

  5. #5
    Senior Tuner Higgs Boson's Avatar
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    Right, I know they don't have the IAC motor but I was wondering if the table affected the ETC TB in some other way (like a multiplier or something) or if I could 0 it out and see the no effects. I did use RussK's config and the log from it is posted..... Thanks!