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    Quick Links: Less MPGs after tune up. Ok...NGK Laser Double Platinum or Standard Copper Plugs? 2012 Tacoma Parts TRD CAI Filter Replacement vs Cleaning Beware.... of afeintakestore.com So now comes performance mods.

UCON Flex Advanced Engine Management System

Discussion in 'Performance and Tuning' started by gray223, Jul 5, 2014.

Page 16 of 86
  1. Jul 21, 2017 at 5:35 PM
    #301
    jojotoo

    #301
    jojotoo Well-Known Member

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    Extension harness installed .. CEL cleared. Had P0031 prior to.
     
    jojotoo, Jul 21, 2017
    #301
    Skootter14, Torspd and SonnyBones[QUOTED] like this.
  2. Jul 21, 2017 at 5:38 PM
    #302
    SonnyBones

    #302
    SonnyBones I VOID WARRANTIES

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    Good to hear there is some hope! @Kyitty Did you ever get those CEL cleared for good after your header install?
     
    SonnyBones, Jul 21, 2017
    #302
  3. Jul 21, 2017 at 6:47 PM
    #303
    Kyitty

    #303
    Kyitty Mr. Beard

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    I wish. I've stopped trying. Never did get to send the O2 Sim bank to URD either.

    I just ignore the fact that I have a CEL constantly. Hopefully that doesn't hurt me some day.
     
    Kyitty, Jul 21, 2017
    #303
  4. Jul 21, 2017 at 8:15 PM
    #304
    jojotoo

    #304
    jojotoo Well-Known Member

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    Weird .. I'm not even using a sim.
     
    jojotoo, Jul 21, 2017
    #304
  5. Jul 21, 2017 at 10:03 PM
    #305
    SonnyBones

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    SonnyBones I VOID WARRANTIES

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    SonnyBones, Jul 21, 2017
    #305
  6. Jul 21, 2017 at 10:30 PM
    #306
    Kyitty

    #306
    Kyitty Mr. Beard

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    URD Long Tube Spec-U headers? And did you remove the front two cats entirely? That's what causes the O2 CEL issues.
     
    Kyitty, Jul 21, 2017
    #306
  7. Jul 21, 2017 at 10:33 PM
    #307
    jojotoo

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    jojotoo Well-Known Member

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    Yup .. urd LT headers. Front cats are gone.
     
    jojotoo, Jul 21, 2017
    #307
    Kyitty likes this.
  8. Jul 22, 2017 at 12:39 AM
    #308
    FinnJ

    #308
    FinnJ Well-Known Member

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    Not weird at all. You have the UCON. Then you don't need sims.
     
    FinnJ, Jul 22, 2017
    #308
    Roostfactor, oni06 and loginfailed like this.
  9. Jul 24, 2017 at 5:43 PM
    #309
    FroadinTaco

    #309
    FroadinTaco Member

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    How much power does the Ucon add onto a stock Tacoma? Sounds really interesting, but 1 thing that I don't quite understand is the self tuning? I've read that the stock ECU self learns and adjusts itself depending on different factors. So isn't that necessarily the same thing that the Ucon does?

    Would like to add some more power to my Taco without having to do headers.
     
    FroadinTaco, Jul 24, 2017
    #309
  10. Jul 24, 2017 at 6:29 PM
    #310
    gersus

    #310
    gersus Well-Known Member

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    Lil lift, bumpers, SC, UCON, headers, etc.
    Stock ecu has limited self learning. The ucon allows changes in tuning to compensate for power accessories and self tunes from that point.
    I've heard like 30hp on a stock truck maybe? Can't recall for sure.
     
    gersus, Jul 24, 2017
    #310
  11. Jul 24, 2017 at 7:03 PM
    #311
    jojotoo

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    jojotoo Well-Known Member

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    i was planning on reprogramming the Ucon for a stock ECU but since it was already programmed for my bd flashed ecu, I installed it.

    My afr would only drop when I'm in boost but now at half throttle (no boost) it's running at 13 to mid 12s. Haven't had a chance to open it up, yet.

    Also, I have 2 CELs, P219a and P219b. I just cleared them, hopefully they don't come back.

    Will take it for a spin once traffic dies down ..
     
    Last edited: Jul 24, 2017
    jojotoo, Jul 24, 2017
    #311
  12. Jul 24, 2017 at 7:14 PM
    #312
    GT7

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    GT7 One piece at a time

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    I have also had a reoccurring p219a
     
    GT7, Jul 24, 2017
    #312
  13. Jul 24, 2017 at 7:14 PM
    #313
    jojotoo

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    jojotoo Well-Known Member

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    Just the A... no B ?
     
    jojotoo, Jul 24, 2017
    #313
  14. Jul 24, 2017 at 8:01 PM
    #314
    loginfailed

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    loginfailed Well-Known Member

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    I have p219a and p219b.

    The ECU is seeing AFR imbalance because there IS one. It's not consistently imbalanced but it happens regularly.

    I have widebands in each manifold and a separate gauge for each. I can see it happening.

    Mine also does 12-13 at 50% throttle. Even with no boost. The TRD ECU didn't add fuel until later when it really needed to. When I get into the throttle the AFR gauges go down to 10.5 or less. Way too much fuel.

    EDIT: The truck feels MUCH slower with the UCON than it did with just the TRD tune.
     
    loginfailed, Jul 24, 2017
    #314
    GT7 likes this.
  15. Jul 24, 2017 at 10:52 PM
    #315
    FinnJ

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    FinnJ Well-Known Member

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    FinnJ, Jul 24, 2017
    #315
  16. Jul 25, 2017 at 8:55 AM
    #316
    TRON

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    TRON Well-Known Member

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    I would question 56 rwhp and that kit... especially being NA.
     
    TRON, Jul 25, 2017
    #316
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  17. Jul 25, 2017 at 10:06 AM
    #317
    jojotoo

    #317
    jojotoo Well-Known Member

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    Per urd .. Gadget is aware of the issue and working on a software update to resolve. He mentioned another customer with the same CELs.. must be you.
     
    jojotoo, Jul 25, 2017
    #317
    loginfailed[QUOTED] likes this.
  18. Jul 25, 2017 at 10:25 AM
    #318
    Roostfactor

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    Roostfactor Well-Known Member

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    I have the p219a and b as well. I've been working with URD towards a solution. We will get there.
     
    Last edited: Jul 26, 2017
    Roostfactor, Jul 25, 2017
    #318
    Kyitty and jojotoo like this.
  19. Jul 25, 2017 at 10:36 AM
    #319
    GT7

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    GT7 One piece at a time

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    Definitely me
     
    GT7, Jul 25, 2017
    #319
  20. Jul 25, 2017 at 10:41 AM
    #320
    loginfailed

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    loginfailed Well-Known Member

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    Me and another that I know of for sure. Scott said he is working out a solution.
     
    loginfailed, Jul 25, 2017
    #320
    Roostfactor, Torspd and jojotoo[QUOTED] like this.
Page 16 of 86

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