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Thread: DFCO "Closed Throttle Delay" not responding to changes

  1. #1

    DFCO "Closed Throttle Delay" not responding to changes

    Have a head-scratcher here: I want to delay the DFCO for longer after the throttle is shut, like 5 seconds instead of 0. One would think the "closed throttle delay" would be the setting to adjust. However, any adjustment above 1 seems to disable DFCO entirely, no matter how long the throttle is shut on decel.

    If I set Closed Throttle Delay to 1, DFCO still works. However, if I set DFCO to 2, it disables DFCO entirely, not delaying it for two seconds as one would expect.

    Screen Shot 2020-06-01 at 8.18.06 PM.png

    Attached is my tune. What am I missing?

    Wes 2012 Mustang GT Cobra Jet Headers v06 No Cats.hpt

  2. #2
    Senior Tuner veeefour's Avatar
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    DEFCO tuning in S197 is funny to say the least. Last time I checked throttle delay is not doing what it suppose to do.

  3. #3
    Quote Originally Posted by veeefour View Post
    DEFCO tuning in S197 is funny to say the least. Last time I checked throttle delay is not doing what it suppose to do.
    That's what I gather. Wonder if it has something to do with the ramp rates or something. Maybe those need to be larger than the delay.

  4. #4
    Tuner in Training
    Join Date
    Feb 2020
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    here is stock DFCO settings for Panther platform
    dfco.jpg

    after 5 second DFCO enable
    i have wideband it seems work like it be should after 5 seconds DFCO enable
    i haven't tried adjust DFCO yet, but i would like set it to kick in after 2 second

    CT extended delay
    any explain ? how occurs

  5. #5
    Ok, I'll try those settings just for kicks and see if it works on my car.