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    Thank you. Will check these. Would anyone...

    Thank you.
    Will check these.

    Would anyone have a stock 12582603 Cal I could leverage for this. It is an '03 6.0L w/4L80E

    Thanks
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    03 6L 4L80E VSS 1/2 GPS Speed

    I have a 6L 4L80E swapped vehicle that was brought in for a speedo calibration as it shifted hard and the speedo wasn't calibrated for the gears and tire size.
    The engine, trans, harness and...
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    Lifted 4x4 Traction Control/ABS Applying

    I have 2014 Silverado 4x4 with a lift and 35 inch tires that came into the dealership for a surge.

    The dealership changed the ECM and the surge went away however the ABS/Traction control applies...
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    Sticky: HI Joe V7.5.24 Is there anyway to see/log the...

    HI Joe
    V7.5.24
    Is there anyway to see/log the idle airflow like commanded air, actual air, Integral, Proportional, etc
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    Sticky: Thanks Joe Still surging I have spent a ton...

    Thanks Joe
    Still surging

    I have spent a ton of time on this. Earlier today I reread this entire thread as well as any other info I could find and thought I had it and was just being a dummy and...
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    Sticky: Thanks Hymey and Lastcall for the input. Thought...

    Thanks Hymey and Lastcall for the input.
    Thought I would update.
    I tried your cal Lastcall and the surging got worse. It did pull the timing down nicely. Amazed me as I thought you were onto...
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    Sticky: Thanks :) Any ideas what I may be missing. I...

    Thanks :)
    Any ideas what I may be missing.
    I ensured the idle base spark, Coast Down Spark and Main Hi Oct & Lo Oct Spark are flat in the areas it is surging. The Spark Idle compensation are...
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    Sticky: Thanks I have quite a bit of injection timing...

    Thanks
    I have quite a bit of injection timing in it, 450deg I think, have moved it around some.
    When you talk idle airflow numbers are you specifically talking minimum airflow or others as well.
    ...
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    Sticky: Sorry for my ignorance but what are you meaning...

    Sorry for my ignorance but what are you meaning by "hard limit in the tune for idle"
    Unfortunately we already put a hole in the blade on this one trying to get the surging out of the idle.
    It is a...
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    Sticky: That would be awesome Joe :) Thanks Here are the...

    That would be awesome Joe :) Thanks
    Here are the latest logs and cal. It is getting better but still not right.
    In my goofing around it wants to die as soon as I step on the clutch, LOL. People...
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    Sticky: Hi Joe I think it is but don't seem to be able...

    Hi Joe
    I think it is but don't seem to be able to see what is driving it.
    I have smoothed the main spark tables, the idle tables and the Coast Down in the areas where it seems it could be occuring...
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    Sticky: 22541 22542 22543 The car works amazingly on...

    22541
    22542
    22543
    The car works amazingly on the road course however the surging below 2000 RPM is irritating. When it is surging the throttle blade and the timing can be seen to move in the logs...
  13. I don't think it should matter but there was an...

    I don't think it should matter but there was an issue with the MAF wiring. Because of the way the ECU was installed behind the dash and impossible to get to without removing the entire dash I have...
  14. A 6.2 or 454LSX would make even more sense :)...

    A 6.2 or 454LSX would make even more sense :)
    22263
    Here's a 69 Chevelle I did
  15. LOL It is a perplexing one :(

    LOL
    It is a perplexing one :(
  16. Any thoughts on what could be causing this....

    Any thoughts on what could be causing this.
    Thanks :)
  17. It's out of a 2007 Silverado 1500 the motors a 5.3

    It's out of a 2007 Silverado 1500 the motors a 5.3
  18. Thanks Joe I’m perplexed

    Thanks Joe
    I’m perplexed
  19. Interestingly it operates properly when cold,...

    Interestingly it operates properly when cold, below 80C.
    Thoughts
  20. Increasing RPM & Speed with O Throttle Pedal Input

    I have a 5.3L with 4 speed auto transplanted into a 68 Chevelle that I have tuned. It runs and drives great. When you pull it into gear then let go of the brake with no throttle input the car will...
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    Sticky: Thanks Joel (Hymey), Swingtan, Ringram and other...

    Thanks Joel (Hymey), Swingtan, Ringram and other contributors to this thread
    I am just finishing off an 06 Z06 with 239/251 @ 0.050 on a 111.5LS cam, FAST intake, Headers, cat delete and exhaust...
  22. Thanks

    Thanks
  23. Hi Joe I haven't got the hardware yet am trying...

    Hi Joe
    I haven't got the hardware yet am trying to ensure I dot the i's and cross the t's before I pull the trigger.
    As far as I can determine it is standard E38 w/ a T42 controller set up for a...
  24. Hi Joe Thanks :) Should the VSS be in the...

    Hi Joe
    Thanks :)
    Should the VSS be in the Transfer Case or Trans Output for a 4x4.
    When the TCase is in Hi it would be 1:1 but when it is shifted into Lo will now it will shift at the same VSS but...
  25. What tells the Trans Controller if the TCase is...

    What tells the Trans Controller if the TCase is in Lo or Hi range so that the shift curves or TPS vs Speed are correct.

    Is the VSS supposed to be in the TCase or Transmission on a 4x4
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