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OVTune 3URFE Tundra ECU Tune Development Thread

Discussion in '3rd Gen Tundras (2014+)' started by OVTune, Apr 25, 2019.

  1. Jul 25, 2020 at 11:06 AM
    #3991
    OVTune

    OVTune [OP] New Member

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    Toyota has recalled more than a million vehicles for faulty fuel pumps, 18/19 Tundras included
     
  2. Jul 25, 2020 at 11:09 AM
    #3992
    Rockgate

    Rockgate New Member

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    Ok. Just ran my Vin. Only recall it's showing is the blinker being dim , which I already fixed thanks to this forum. Other than that, are the 2019 tunes ready?
     
  3. Jul 25, 2020 at 11:17 AM
    #3993
    shellshock

    shellshock Guy who drives a lot

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    Yeah... still waiting on mine.. plus now a stupid blinker recall :(
     
  4. Jul 25, 2020 at 11:23 AM
    #3994
    2Tall

    2Tall New Member

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    @OVTune I sent you logs from my base tune, but recently realized used tow haul since installing the tune. I feel like it’s gear locking in tow haul D instead of S-mode.

    Should I send another email to Zendesk or will that jumble up our email chain?
     
  5. Jul 25, 2020 at 11:35 AM
    #3995
    Wynnded

    Wynnded Stay home.

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    I heard that it's just a fluid level issue. ;)

    There were some tunes that functioned that way. I had one prior to the most recent one I was sent. To me the easiest way to check is to have it in T/H, let it upshift to what feels like 2nd and then romp on it. If there's no GL, it will downshift to 1st. What I like about doing it this way is that you can do it in a large empty parking lot nearby rather than hitting the highway, or whatever method is handy.
     
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  6. Jul 25, 2020 at 11:42 AM
    #3996
    2Tall

    2Tall New Member

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    Pretty much what I did. I first noticed it taking the on ramp getting on the interstate. Hit the on ramp, gave it the beans to get up to speed, and it never downshifted. Later tested it like you said, matted the pedal and no down shift.
     
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  7. Jul 25, 2020 at 11:47 AM
    #3997
    Wynnded

    Wynnded Stay home.

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    Sounds like confirmation to me. I actually like it this way as I never seemed to remember to use GL until I was up to cruising speed. Then I felt I had to put it in S-Mode, then manually upshift to 6th, and then hit T/H. The way yours is now (the way mine was) I would remember, the just press T/H and carry on without having to deal with the downshift/upshift business.
     
  8. Jul 25, 2020 at 12:02 PM
    #3998
    Wynnded

    Wynnded Stay home.

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    While I'm rambling....
    I know that it's been mentioned (I've done so myself) of the desire to have the transmission behavior to be that it remain in its current gear when flipped from D to S-Mode. Mat has stated that he hasn't found the code for this functionality, but that's not what I'm speaking to.

    Something I noticed while overtaking on a secondary road was how much more efficient the maneuver seemed to be when as I was getting ready to move into the other lane, going from D to S-Mode (and the default functionality of going directly to 4th) in preparation seemed to save time by having the engine reved more into the powerband pre-pass. It downshifted further during the actual pass anyway, but it was "nearer" to the needed gear for the overtake. This made me wonder to myself if maybe this was more akin to what the engineers may have had in mind when they wrote the initial shift logic. It's more efficient than the aforementioned D to S-Mode w/out downshift, and then manually downshift. But then maybe this is where Mat's DirectShift feature would come into use...

    Should be interesting to dink around with as development progresses.
     
    Last edited: Jul 25, 2020
    TruckyTruck likes this.
  9. Jul 25, 2020 at 12:29 PM
    #3999
    Cuban11182

    Cuban11182 New Member

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    I personally have it where GL will work both in tow/haul in D and S. I seem to like the tow/haul to not to GL when in D as I want the increased throttle sensitivity. I just towed my CJ7 from where I live in Fayetteville NC to Charlotte and ended up just manually shifting in D once I got to the mountains. I guess maybe I'm on the fence about GL, and once everything is completed, ask Mat to give me a tune with the updated trans tuning but without GL. I don't want to bother him now about it.
     
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  10. Jul 27, 2020 at 5:48 AM
    #4000
    azTony

    azTony New Member

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    2018 Tundra Platimun with Icon Stage 9 w/3.0 and billet UCA, Harrop Elockers, 5.29 on 35’s
    I am waiting for the GL and direct shift to become available to 2018’s. Looking forward to control in 4WD without the nannies taking over
     
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  11. Jul 27, 2020 at 6:49 AM
    #4001
    Cuban11182

    Cuban11182 New Member

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    Mine is a 2018, and I have GL. I miss not having the pedal feel with the tow/haul mode. Maybe direct shift would be a better option for me and just get rid of GL all together. I did use GL when I towed the RV from Miami to Fayetteville (7,500 lbs) and was monitoring temps. Honestly though I would just lock it in 4 or 5, and whenever I came to an overpass where the truck couldn't maintain, I would have to downshift. The old way to deal with rising temps was to drop it down a gear, to increase the flow of fluid in the transmission. With gear lock you would have to physically drop down a gear. I can see where GL would do very well (just guessing), such as tractor pulls where you want to lock it into gear, and let it eat.
     
  12. Jul 27, 2020 at 9:54 AM
    #4002
    ZPMAN

    ZPMAN 2nd place is the 1st looser

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    My wifes 18 Highlander due in next Friday for fuel pump recall.
     
  13. Jul 28, 2020 at 6:53 AM
    #4003
    azTony

    azTony New Member

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    i was told the extras are still being developed
     
  14. Jul 28, 2020 at 6:54 AM
    #4004
    OVTune

    OVTune [OP] New Member

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    They are, although we will be rolling out release in a few days.

    He had the original implementation of gear lock.
     
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  15. Jul 28, 2020 at 6:57 AM
    #4005
    Cuban11182

    Cuban11182 New Member

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    Thanks for clarifying Mat. Does the new one work differently?
     
  16. Jul 28, 2020 at 6:59 AM
    #4006
    OVTune

    OVTune [OP] New Member

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    yes.


    okay guys I'm surprised you guys are still confused about this.

    current / original implementation of gearlock worked like this:
    You press the Tow haul button, and it disables downshifting.


    New version:
    you put it into S4 (with/without pressing tow haul) it disables downshifting.
     
  17. Jul 28, 2020 at 7:03 AM
    #4007
    MTRock

    MTRock New Member

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    2013 5.7 Tune Pack coming soon?
     
  18. Jul 28, 2020 at 7:03 AM
    #4008
    azTony

    azTony New Member

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    I sent an E-mail asking questions about data logging for the shifting on 5/27/20 through Zendesk and have not received a reply. Trying to be patient but want the shifting to be better controlled. Seems like it holds a gear even with letting off the gas for a very long time.
     
  19. Jul 28, 2020 at 10:40 AM
    #4009
    TruckyTruck

    TruckyTruck Dumbest Username

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    No confusion here, just excitement!!!
     
  20. Jul 28, 2020 at 11:00 AM
    #4010
    osidepunker

    osidepunker OsidePunker

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    Mine was doing that too. But the latest tune revision he sent me fixed that. Im not gonna tell you to be patient like some other guys on here :rolleyes:, just letting you know that Mat can fix that for you
     
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  21. Jul 28, 2020 at 11:02 AM
    #4011
    osidepunker

    osidepunker OsidePunker

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    For anyone interested, Mat was able to successfully remove the throttle limits in 4lo for me. It works great now on steep hill climbs or technical trails. Still have to work on 4hi

    Also, does anyone else have weird shifting in cruise control?? Seems like when I put it in cruise, the shift maps change and it starts hunting and holding higher revs on the freeway. basically cc is worthless for me right now
     
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  22. Jul 28, 2020 at 11:21 AM
    #4012
    Wynnded

    Wynnded Stay home.

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    It has always seemed to me, in just about any vehicle stock or not, that CC feels quite aggressive in its efforts to maintain the set speed resulting in down shifts to do so, or exhibiting the behavior you're describing. When running an OVTune that includes GL, this obviously doesn't occur. CC may actually have a different map, I honestly don't know.
     
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  23. Jul 28, 2020 at 11:31 AM
    #4013
    chasenicholas93

    chasenicholas93 New Member

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    anyone running the tune on there 2019 yet?
     
  24. Jul 28, 2020 at 11:43 AM
    #4014
    TruckyTruck

    TruckyTruck Dumbest Username

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    Yes, a couple of months ago. I had the cc set to 70, went down a hill then as I started going up the hill the truck acted like it was going to down shift but didn't at all and just slowed down like it I had turned off the cc. Pretty strange, but I wanted to wait and see if the final update fixes it.
     
  25. Jul 28, 2020 at 11:50 AM
    #4015
    osidepunker

    osidepunker OsidePunker

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    yeah Ive had cc turn off on its own on hills before. Like if it needs to add too much throttle it just decides to turn off

    I think this is oem behavior and I suspect that cc has its own shift table or something
     
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  26. Jul 28, 2020 at 12:03 PM
    #4016
    Wynnded

    Wynnded Stay home.

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    This is interesting. When I've used CC coming off mountain passes (6-8% grade) in D, when I've reached a speed about 8-ish MPH over what my CC is set, the transmission will actually down shift and engine braking will ensue. I've never had my CC self-cancel. It has always behaved this way, stock or tuned.:monocle:
     
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  27. Jul 28, 2020 at 6:23 PM
    #4017
    4firemandan

    4firemandan Superduper Member

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    Hey Matt,

    those of us that are getting the custom tunes from you, once vftuner is available for our model year can you just give us the file to tweak ourselves? I would much rather just adjust those things instead of having to keep sending it back to bother you and waiting for minor things.

    Speaking of that.. 2016FFV (CM51)... any eta on the tuner?
     
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  28. Jul 30, 2020 at 3:21 PM
    #4018
    OVTune

    OVTune [OP] New Member

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    Hi guys.
    Tomorrow I will be posting how this update will be released, and what the update includes.
    How the features work, and what ECUs are not supported yet ( sorry super old ECUs, like 07 )
     
  29. Jul 30, 2020 at 3:25 PM
    #4019
    Cuban11182

    Cuban11182 New Member

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  30. Jul 30, 2020 at 3:27 PM
    #4020
    Jbtaco2002

    Jbtaco2002 Almost a Tundra

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    are tune updates coming for those of us who have sent logs from the base tune and are still waiting for that first revision?
     
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