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vF Tuner for the 3.5L Tacoma

Discussion in '3rd Gen. Tacomas (2016+)' started by Rafael@OVTune, Apr 23, 2020.

  1. Nov 21, 2020 at 8:44 PM
    #8281
    ForceOfG

    ForceOfG Well-Known Member

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  2. Nov 21, 2020 at 8:45 PM
    #8282
    ry18Tac

    ry18Tac Well-Known Member

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    Has anybody found the sweet spot for downshift tables for all gears? Lately I’ve been feeling like I’m having to use my brakes a lot harder now. I know I most likely need to raise the tables, but I’m just wondering if anybody has found exactly how much to raise them.
     
  3. Nov 21, 2020 at 8:47 PM
    #8283
    Kamille.bidan

    Kamille.bidan Well-Known Member

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    I coulda sworn I saw people selling license transfers before?


    Is something different now?
     
  4. Nov 21, 2020 at 8:52 PM
    #8284
    Shellshock

    Shellshock King Shit of Turd Island

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    Nope. Always been that way.
     
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  5. Nov 21, 2020 at 11:13 PM
    #8285
    RushT

    RushT Amateur Everythingist

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    Back in the dongle days you could sell the kit at ~half price, but still had to buy a license. It came out about $50-$100 cheaper than new.
     
  6. Nov 22, 2020 at 3:25 AM
    #8286
    92ehatch

    92ehatch Well-Known Member

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    Are the dfco and rev hang controls hidden in there somewhere?

    Throttle angle ones perhaps?
     
  7. Nov 22, 2020 at 3:31 PM
    #8287
    ktbell444

    ktbell444 Problem Solver

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    Ok, I found what makes my truck go into limp mode:
    Reference my original post here.

    Whenever I edit airload control (smoothing out the values @Stormpeacock states in his file, posted here), one or all of the tables causes a very rough idle in park, but not while idling in drive (weird). Either control airflow, expected airflow, or both (not sure which one) and not sure which lambda. This is the same symptom I had prior to limp mode last time, so I resorted to using the edits Matt recommended here instead, as these seem to not cause any issue. Not sure why 04B81 (2020 AT) doesn't like these values being edited much.
     
    Last edited: Nov 22, 2020
    GPatriot and SpeySquatch like this.
  8. Nov 22, 2020 at 4:39 PM
    #8288
    Stormpeacock

    Stormpeacock IG: @stormptacoma

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    vF Tuned MESO Garmin Mini Dash Cams Hella Horns: Sharptones Custom Shift Knob Lomax Pro Tonneau
    The suggestions in my spreadsheet are for a different set of maps than the ones you are showing.

    I have Matt's same suggestions for those maps with lambda as you have displayed.
     
    ktbell444 likes this.
  9. Nov 22, 2020 at 5:38 PM
    #8289
    imjohn

    imjohn Well-Known Member

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    How big of a change is it switching over from regular to premium?
     
  10. Nov 22, 2020 at 5:42 PM
    #8290
    PapaRee

    PapaRee And now I'll do what's best for me

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    You have to start with a Premium or Regular octane 2.0 file, then make the changes. In VFtuner, if you compare a premium and regular file, it’s very hard to find any difference (just a few small differences), so I believe there are changes that only Mat can make.
     
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  11. Nov 22, 2020 at 5:50 PM
    #8291
    Boltripper

    Boltripper Well-Known Member

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    I would have thought most of the changes would have been in timing advance.. Interesting you didn't see much.

    j
     
  12. Nov 22, 2020 at 5:57 PM
    #8292
    PapaRee

    PapaRee And now I'll do what's best for me

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    Yea, I wish there was just an easy way to change between the 2. Like it is for gears and tires. Maybe he’ll add it in the future.
     
  13. Nov 22, 2020 at 6:22 PM
    #8293
    ktbell444

    ktbell444 Problem Solver

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    I only see one airload control - control airflow map and one airload control - expected airflow map? Am I missing something that's obvious? Lol, thanks for your response. It's not meant to say you're wrong about something by the way, could just be the ECU doesn't like it or I'm a jackass. :confused:
     
  14. Nov 22, 2020 at 7:43 PM
    #8294
    Stormpeacock

    Stormpeacock IG: @stormptacoma

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    vF Tuned MESO Garmin Mini Dash Cams Hella Horns: Sharptones Custom Shift Knob Lomax Pro Tonneau
    Just need to read the map headings and subheadings.
    **Accelerator has acceleration Throttle Request to airload.
    **Airload control has the maps that have lambdas.
    - this should have the same suggested change from Matt.
     
  15. Nov 22, 2020 at 7:49 PM
    #8295
    ktbell444

    ktbell444 Problem Solver

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    We are discussing the same maps then.

    Your spreadsheet covers y-axis 650-2400 whereas Matt's covers 800-2000. One would think that wouldn't make much of a difference though (over row higher and lower). I've attempted it twice now and both times have resulted in the same thing.
     
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  16. Nov 22, 2020 at 8:06 PM
    #8296
    Stormpeacock

    Stormpeacock IG: @stormptacoma

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    Ah, okay. That's the clarity I needed. So you are saying that you have rough idling of smoothing 650-2400, but not if you just do the 800-2000?
    If that's the case I may need to elicit more feedback and change this info!
     
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  17. Nov 22, 2020 at 8:30 PM
    #8297
    ktbell444

    ktbell444 Problem Solver

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    I apologize for the confusion. Explaining things online is not my strong suit. Just look at a lot of my past posts and you'll see I edit them because I realize how much sense they don't make, lol.

    Rough idling (idle jumps up and down from ~400-1000 RPM) every 10 seconds or so. Only happens while in park, if I'm in drive but idling then there's no anomaly of the sort.

    And correct, smoothing the range Matt provides does not yield the same results. I made two tunes today. The first one had your airload tweaks, but after the rough idling returned, I made a second one using Matt's values instead. The only difference between the two tunes were those values and problem gone.

    My past tunes also used Matt's values, with the exception of the one I tweaked back in my referenced post. Which well before you made your spreadsheet by the way. Both times that I had rough idle I had only made changes to the airload tables beyond what Matt suggested.
     
  18. Nov 22, 2020 at 8:43 PM
    #8298
    Stormpeacock

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    No no, I was making assumptions when you said smooth and was not willing to think it could be those lambda maps.
    That's interesting. I've had similar idling at over 500rpms, but I reflash so often I chalk it up to the learning.

    I'll check my idle in the am and adjust a tune and stick within that range and see if it makes a change.
    Won't be a problem to change that in the spreadsheet or at the very least put a disclaimer. I think the video will be hard to change though o_O
     
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  19. Nov 23, 2020 at 6:31 AM
    #8299
    KnckleChldrn

    KnckleChldrn Well-Known Member

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    Trying to get dealer to upgrade the ECU. Seems like they have no idea. I have requested to have it upgraded to 04B14 and they have come over with a couple print offs of one upgrade for surging at idle and another for throttle performance and have asked me a few times what I’m looking for. I do not have any faith this is getting done properly...should’ve waited till I got the tatrix cable and saved myself $150 I know they are likely going to charge.
     
  20. Nov 23, 2020 at 6:50 AM
    #8300
    tonered

    tonered tacorider

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    TSBs are free and these are applicable to the longer powertrain warranty.

    It doesn't matter what symptom they qualify it under. As for confidence, it is literally hitting one button and following the prompts which are basically, turn the key on, turn the key off.

    upload_2020-11-23_6-49-7.jpg


    Also, you have vF then you have a Tactrix already, right?
     
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