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2016+ Toyota Tacoma OVTUNE 1.05 - Tune Development thread

Discussion in '3rd Gen. Tacomas (2016+)' started by OVTune, Jun 9, 2017.

  1. Sep 8, 2017 at 1:15 PM
    #4001
    20tacoma17

    20tacoma17 Well-Known Member

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    Hopefully just a warning?
     
  2. Sep 8, 2017 at 1:16 PM
    #4002
    DES2009

    DES2009 Unknown Member

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    Yes. This is what I was getting at in my post from a few days ago . . .
     
    inksin and Egnaro like this.
  3. Sep 8, 2017 at 1:17 PM
    #4003
    bshammer0

    bshammer0 Well-Known Member

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    I am bias based on my experience, but it seems that anyone who had a Tacoma produced before this spring should invest $100 in a bit of insurance with that sensor. Mine wreaked so much havoc - I just hope it wasn't enough to cause long-term damage over the first 10k miles I owned it. Mine was shuttering a LOT before replacement, running super-rich, idling 2x what it did afterward... but Toyota of course said it was all in my head and there was nothing wrong with my truck since no CELs. Idiots.

    I enjoy my truck now and I'm sure many others who have and will continue to take advantage of this mod will find themselves swapping sides from the Turds to the Unicorns soon enough...
     
    deadgame and speedtre like this.
  4. Sep 8, 2017 at 1:17 PM
    #4004
    perkj

    perkj Well-Known Member

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    @OVTune
    if I understand correctly I think what you are saying is that due to variences in the CPS and with some of the CPSs teetering on the verge of being out of the acceptable variance or already outside the acceptable variance, the tune is experiencing this issue due to it being more aggressive with the ignition timing. Whereas with the stock tune not being as aggressive, its able to tolerate the out of bounds variance. That basically it in a nut shell?
     
    taco 16 likes this.
  5. Sep 8, 2017 at 1:21 PM
    #4005
    speedtre

    speedtre Well-Known Member

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    I hope this ends up being me. I'm just can't get off my wallet until the shifting is more sorted than it sounds like it is still with 1.02....that is my #1 complaint by far.
     
    sig916 likes this.
  6. Sep 8, 2017 at 1:25 PM
    #4006
    Quicksand Jesus

    Quicksand Jesus Well-Known Member

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    Agree! I was experiencing the shudder as well before I had the CPS replaced due to the re-call. After replacement no shuddering whatsoever! Ran like a different truck.
     
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  7. Sep 8, 2017 at 1:26 PM
    #4007
    OVTune

    OVTune [OP] Well-Known Member

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    OVTune
    No worries, post like this is not snarky or condescending, this helps me to target what to do next.

    I have driven one but no over long periods. On the dyno I watched how it shifted in D with various amounts of throttle and it *seemed* to shift like a normal car. Between 2000 to 3000 quickly.

    it's kind of difficult to gauge what everyone is asking for.

    The transmission learning and control maps are simply hard to tune. To really perfect shifting I would need someone who would be willing to drive on many different shift parameter maps. Because I cannot disable the learning. When I do the truck simply doesn't shift at all.

    Being unable to disable the learning leaves to me just trying to tailor the learn to maximize " best" shifting, but the complexity is compounded because every torque map uses raw numbers that simply have no meaning.


    as insane as it sounds it's the difference of less than 1* advance on the table in certain low load areas. Areas where the difference in ignition is 0.5* and I feel the CKS issue is compounded when the ECU is trying to differentiate a half degree through a crank wheel / sensor giving bad readings.
    Fixing it is adjusting toyotas OEM maps that I normally don't have to touch.




    anyways guys I'll be back later to get anyone with the issue sorted out.
     
    Last edited: Sep 8, 2017
    riz_atx, bshammer0 and inksin like this.
  8. Sep 8, 2017 at 1:48 PM
    #4008
    fxrman

    fxrman Well-Known Member

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    What is a good laptop that is no too expensive that would be only used for this install...?
    Thinking i might get one just for this.
     
  9. Sep 8, 2017 at 1:48 PM
    #4009
    Egnaro

    Egnaro Watch this

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    My shifting seems fine, drive like grandma it shifts like grandma. Drive like a teenager, it shifts high in rpm range. Normal driving to me it shifts around 2-3k, if im lazy driving it shifts lower. I just let it do its thing. The BIGGEST improvement to me with this tune is the hesitation is gone when I do want to give-er-hell. Now it just gets up and goes, shifting is responsive, throttle is responsive. The hunting for gears thing on the freeway is what its designed to do to maximize fuel efficiency. If anyone thinks their gas mileage is bad and shifting is to blame, ask a 2nd gen guy what his gas mileage is and you might not mind the shifting as much.
     
    bshammer0 likes this.
  10. Sep 8, 2017 at 1:49 PM
    #4010
    Egnaro

    Egnaro Watch this

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  11. Sep 8, 2017 at 1:49 PM
    #4011
    bshammer0

    bshammer0 Well-Known Member

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    Only thing I can say to this is that while the shifting is still weird... the actual quickness and smoothness of the shifts makes a big difference. It's not really so annoying now as it is weird how fast it upshifts, but downshifts aren't delayed. Press the gas a bit, and you're downshifting smoothly. The other changes make the shifting less of a bother b/c it's so smooth... and all of the other drivability improvements are worth the price of admission!
     
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  12. Sep 8, 2017 at 1:52 PM
    #4012
    fxrman

    fxrman Well-Known Member

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  13. Sep 8, 2017 at 1:56 PM
    #4013
    rnicholls

    rnicholls Well-Known Member

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    Waiting for my files like :goingcrazy::goingcrazy::goingcrazy:
     
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  14. Sep 8, 2017 at 2:03 PM
    #4014
    Scooby24

    Scooby24 Well-Known Member

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    Can those shift parameter maps be duplicated? So 16 maps are still in place but all 16 have the same parameters? Or is that what you did in consolidating as much as it could be?
     
  15. Sep 8, 2017 at 2:29 PM
    #4015
    bshammer0

    bshammer0 Well-Known Member

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    Just had to run a quick errand and in trying to put the weirdness into better clarity, what I think is different now is that it almost seems to skip a gear between 4-6. It seems to shift pretty normally up to 3rd, but then just goes shift shift 6th. I'll have to validate the RPMs and actual gears with my OBD when I have more time but that's what feels different about it on mild acceleration whereas it actually did hold the gears a bit longer on 1.01b. Again - need learning before I can say this isn't temporary and it ISN'T the end of the world, but is odd...

    Edit: but DAMN that throttle :) makes me very happy.
     
    Last edited: Sep 8, 2017
  16. Sep 8, 2017 at 2:35 PM
    #4016
    sig916

    sig916 Well-Known Member

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    Got this specifically for the tune. No need to disable anything. Its small and portable to keep it inside glove compartment.

    Screenshot_2017-09-08-14-33-30.jpg
     
    perkj, 17TRDOR and speedtre like this.
  17. Sep 8, 2017 at 2:39 PM
    #4017
    Tacoma2GR

    Tacoma2GR Well-Known Member

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    Which website sells this?
     
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  18. Sep 8, 2017 at 2:40 PM
    #4018
    speedtre

    speedtre Well-Known Member

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    I hear you, but if the schizophrenic highway shifting is not fixed it's just not worth almost $800 to me. I'll wait a while hoping OVTune can sort that out but if not I'll be test driving (extended test drives!) 2019 Rangers and Frontiers next year (maybe Tundras if they finally update it). That Ranger Raptor with the 3.2 diesel looks to be the dogs bollox! :D
     
    AFMurse2014, Ares32 and bshammer0 like this.
  19. Sep 8, 2017 at 2:44 PM
    #4019
    mrproduxn

    mrproduxn Well-Known Member

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    bshammer0 likes this.
  20. Sep 8, 2017 at 2:47 PM
    #4020
    su.brat

    su.brat Tacomakart

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    we all love each other here i'm sure.

    but at this point the MT guys are hating the AT trucks more than ever. gawd. :anonymous:
    yeah. just wait until 2019. sounds like a plan. why are you posting here, again?
     

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