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Thread: Modified ADX file for 12587603

  1. #1
    Carb and Points!
    Join Date
    Sep 2020
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    Modified ADX file for 12587603

    Hi all, brand new to the forum- I'm also new to TunerPro. I found a LS1 ELM327 ADX on here and modified it a little to record LTFT for B1 and B2 against MAP. It looks like it worked fine for my 12587603 OS on my 2004 GMC Sierra 1500 with the 5.3 and 4l60E. Anyone want to look at it and see if I made any mistakes?

    Thanks!
    Attached Files Attached Files

  2. #2
    Electronic Ignition!
    Join Date
    Jul 2020
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    Thanks for the ADX!

  3. #3
    Carb and Points! thedave's Avatar
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    Mar 2013
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    galena Illinois
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    I opened the tuning file with the 12587603 xdf and most of the tables are zeroed out including the fuel and low and high octane spark tables. I thought maybe my software was messing up so tried it 3 times still all the same.

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