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Thread: LQ4 / LS3 Heads / Stage 2 BTR Truck Cam, Tune Help!

  1. #1
    Potential Tuner
    Join Date
    Jun 2025
    Posts
    1

    LQ4 / LS3 Heads / Stage 2 BTR Truck Cam, Tune Help!

    Hey fellas, Was looking to see if anyone has a tune to get me close
    Setup is in a 03 Gm Single Cab Short Box

    -LQ4 6.0
    -Ported LS3 Heads
    -Holley Mid Rise Intake
    -92mm Throttle Body DBC
    -Stage 2 BTR Truck Cam
    -4L80E

    Truck seems to idle okay when my IAC is unplugged but when its plugged in it wants to idle hang like crazy
    Any help would be greatly appreciated. Looking forward to learning this tuning world a bit better!

    Would definatly be interested in a remote tuner if anyone has suggestions
    Last edited by Regcab180; 1 Day Ago at 04:47 PM.

  2. #2
    Tuner in Training
    Join Date
    Nov 2024
    Posts
    31
    you would have to share your tune and a data log. I got a base file for my gen 4 from Matt Stanford but he also has gen 3 base files and remote tuning

  3. #3
    Senior Tuner
    Join Date
    Dec 2019
    Location
    MS
    Posts
    1,184
    Did you make sure your IAC is working?
    If its got a Chrysler IAC it's going to not do right.
    Need to confirm IAC movement when commanded.