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Thread: 1252065 Custom OS Closed Loop STFT active in PE.

  1. #1

    1252065 Custom OS Closed Loop STFT active in PE.

    Original OS is 12606807, 2006 Silverado, 4.8, 4L60E, 70mm single turbo. All the normal stuff is done. If some of it looks overboard it's because I have been trying to get it to stop running in closed loop at WOT.

    The truck came to me with the Custom OS in it already.

    v7.hpt
    v7.hpl
    Last edited by APS; 05-02-2018 at 11:46 AM.
    Bo Woody owner:
    APS Automotive
    www.apstuning.com
    Oklahoma City, Oklahoma
    405-424-RACE

  2. #2
    Senior Tuner
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    Crickets. Crickets.
    Have you tried flashing it back to stock then tuning it with 2.24? LOL.

  3. #3
    I got the file from the original person who read the truck. Flashed the stock calibration back into it with write entire, read the calibration back out of it with 2.24, applied the 2bar OS, saved the file, closed the file, open the 2bar file, manually moved all the data over, still have the exact same issue.

    Now going to try just putting it open loop and switching STFT in open loop back on and see what it does. If that does not work it will just leave here in open loop.
    Last edited by APS; 05-03-2018 at 01:45 PM.

  4. #4
    Well after all that crap I tried to disable WOT fuel trimming by setting ect to go closed loop to 280, turned STFT in open loop back on and nope it still does the same thing. So it left here in OL running perfect.
    Bo Woody owner:
    APS Automotive
    www.apstuning.com
    Oklahoma City, Oklahoma
    405-424-RACE