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Thread: not staying in closed loop

  1. #1
    Advanced Tuner f.creek-ranch's Avatar
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    not staying in closed loop

    hey,

    2013 challenger at

    try to log stft, but randomly it goes in open loop.

    tp wot 5V , hysteresis 5v, dfco off, nn off, second 02?s off and 191?, wot delay 5.200 sec.

    could it be FA tresh ?

    thanks...
    Last edited by f.creek-ranch; 07-09-2020 at 12:38 PM.

  2. #2
    Advanced Tuner
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    Hysteresis needs to be lowered, this is here to create window for activation. so if WOT is set to 5.0v and your hysteresis is set to 5.0v then that gives a window of 5.0v for WOT fueling, lower this back to stock settings. not sure what stock is but for reference if you set the hysteresis to 0.5v instead that will give you a window of 4.5-5.5v for WOT fueling. Basically its telling the pcm that what ever the hysteresis is it can fluctuate WOT fueling by this amount. So your Hysteresis is a adder in a way on both sides to your WOT fueling setting.

    WOT=5.0v
    Hysteresis=0.5

    Actuall activation can be anything between 4.5v-5.5v
    6.4 Whipple Diamond pistons Manley rods, Demon Plus Cam

  3. #3
    Advanced Tuner f.creek-ranch's Avatar
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    Thanks....I have misunderstood the hysteresis.

    Actually I have disabled throttle adaption and it feels a lot better for response. No open loop more this time.