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Thread: How to REALLY shut of closed loop/ force open loop

  1. #1
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    Default How to REALLY shut of closed loop/ force open loop

    Holy cow.... tried about everything, and every parameter concerned with running close loop, and could not force open loop full time....

    Still, for some reason, at about 1200 to 2200 rpm, the stupid thing runs closed loop, and for some reason tries to correct to 15.6:1, causes the car to buck etc...

    If it's during warm-up before it enters closed loop, runs perfect.

    Anyone else have this issue? Did I miss a setting? Are they mislabeled in EFI Live?

  2. #2
    Joe (Moderator) joecar's Avatar
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    Have you done these things:
    - disable B3801,
    - disable B4602,
    - set B4205 to max value.

    Do you have any logs you can post...?

  3. #3
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    Quote Originally Posted by joecar View Post
    Have you done these things:
    - disable B3801,
    - disable B4602,
    - set B4205 to max value.

    Do you have any logs you can post...?
    B3801 is set to disable
    b4602 is set to 0
    B4205 is set to 140 (max)

  4. #4
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    are you actually monitoring the O2 voltages to see if they are switching? You may actually be in closed loop the the VE table is way lean at 15.6:1 as you are observing. Not unusual for some base VE maps to be that lean in places.
    Mike
    "Just a tune > yeah right !!!! "

  5. #5
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    Quote Originally Posted by The Alchemist View Post
    are you actually monitoring the O2 voltages to see if they are switching? You may actually be in closed loop the the VE table is way lean at 15.6:1 as you are observing. Not unusual for some base VE maps to be that lean in places.
    Mike
    No, I was watching stft.... and you can see it on the wideband.. perfect for a few minutes, the stft kick in and shes drifts lean.... shut down, restart, all good....

    tturns out though that somewhere along the way, the B3649 table somehow reverted to having 1.0 in some cells, when I could have sworn I put in .98....

  6. #6
    Lifetime Member macca_779's Avatar
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    post your tune mate and I'm sure we can work it out for you

  7. #7
    Joe (Moderator) joecar's Avatar
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    I think he found it (B3649 containing cells set to EQ 1.0).

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