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Finally a fix from Toyota for Stumble condition (TSB 0062-18)

Discussion in '3rd Gen. Tacomas (2016+)' started by AWDDude, Jul 19, 2018.

  1. Sep 20, 2018 at 4:26 PM
    #2061
    NMTrailRider

    NMTrailRider Well-Known Member

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    Even after cresting a hill, I'm back to it hanging on to the lower gear for 1/8 mile. It was better right after the tsb. But it's back to its old habits after 2k miles.
     
  2. Sep 20, 2018 at 4:30 PM
    #2062
    NMTrailRider

    NMTrailRider Well-Known Member

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    The computer learning still occurs in D after getting the TSB. So it will not continue to drive exactly like it does right after the tsb.

    But yes, overall it's an improvement.
     
    Tibetan Nomad likes this.
  3. Sep 20, 2018 at 5:01 PM
    #2063
    Tibetan Nomad

    Tibetan Nomad Well-Known Member

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    How can I minimize or stop this ECU computer learning? I would hate for the current driving experience to fade away... its the 2nd day after the ECU flash and it drives perrrrfect! I can’t imagine going back to that pre-flash, it was horrible!
     
    rosebud likes this.
  4. Sep 20, 2018 at 5:14 PM
    #2064
    jmneill

    jmneill Well-Known Member

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    If you want anything else tweaked, grab the Carista OBDII dongle off Amazon for $20 bucks, download the associated app and tweak all that crap yourself for 30 days. If you forget to cancel the subscription, as I did, the app is $40 bucks a year after that.
     
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  5. Sep 20, 2018 at 5:16 PM
    #2065
    TFly

    TFly Well-Known Member

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    I don't believe door chime can be disabled. Seatbelt, yes. Door chime, no.
     
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  6. Sep 20, 2018 at 5:18 PM
    #2066
    rosebud

    rosebud Love that transmission!

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    Stock suspension, stock wheels, stock bumper, stock, stock, stock, dammit!
    My truck has DId after the update. Sometimes it shifts close to normally, and then it acts like an unbroke horse, then a granny, then a libra!
     
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  7. Sep 20, 2018 at 5:22 PM
    #2067
    Lt. Dangle

    Lt. Dangle Thinks skiploder needs a hug

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    stuff
    S mode is for you then.
     
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  8. Sep 20, 2018 at 5:25 PM
    #2068
    Tibetan Nomad

    Tibetan Nomad Well-Known Member

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    You mean drive in S mode so that the ECU comp learning will be based on S mode therefore maximum likelyhood of keeping more of fresh off flash driving experience?
     
  9. Sep 20, 2018 at 5:30 PM
    #2069
    Lt. Dangle

    Lt. Dangle Thinks skiploder needs a hug

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    There is no learning in S mode.
     
  10. Sep 20, 2018 at 5:43 PM
    #2070
    StayinStock

    StayinStock Possom: The Other White Meat

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    Even in S mode, or just in D?
     
  11. Sep 20, 2018 at 5:44 PM
    #2071
    NMTrailRider

    NMTrailRider Well-Known Member

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    No.

    "Learning" occurs when driving in D. Always and forever. It never stops learning and is always evolving. Whenever you drive in D, it will "behave" according to what it's "learned".

    In S-mode, no learning occurs. And it always drives exactly the same (just like it does RIGHT NOW)--independent of what was "learned" in D.

    If you continue to drive in D, and it continues to please you, stay the course. But if it starts to do funky stuff again, and it might (because it changes based on driver input over time), then try S modes.

    As a guide-- S4 for up to 35mph. S5 for up to, say, 55mph. And S5 or S6 at interstate speeds.

    The S modes simply limit the highest gear the truck will shift into and will not implement "learned" behavior (which maximizes fuel consumption). Nothing hidden here. In S4, the truck will never shift into 5th or 6th gear (over drive gears). In S5, the truck will use gears 1 to 5. In S6, the truck will use gears 1-6.
     
  12. Sep 20, 2018 at 5:46 PM
    #2072
    NMTrailRider

    NMTrailRider Well-Known Member

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    Nope not in S mode, just D. That was the first thing I noticed about the S modes-- drastically reduced engine effects on braking.
     
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  13. Sep 20, 2018 at 5:59 PM
    #2073
    NMTrailRider

    NMTrailRider Well-Known Member

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    The S modes + D are basically just like the D, 3, 2, 1 that have been in any other vehicle of the last 40 years.

    The 2nd gen Tacoma's "learned" when in D, as well. Most vehicles do nowdays. But the overall throttle mapping + NON-Atkinson cycle engine in the 2nd gen had a very different feel (it felt "normal" for a truck).

    The difference here is that the 3rd gen "D" is very very super majorly tuned for max fuel consumption. And it feels abnormal to many of us. I'm not suggesting there aren't other problems with the transmission (many of us have/had problems). But if you want a consistent, more "normal" driving experience, S mode is where you'll find it.

    This is my understanding of what's going on.
     
    Tibetan Nomad likes this.
  14. Sep 20, 2018 at 6:02 PM
    #2074
    Deucer01

    Deucer01 Well-Known Member

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    OVTune!
     
  15. Sep 20, 2018 at 6:06 PM
    #2075
    NMTrailRider

    NMTrailRider Well-Known Member

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    A nice option, but it shouldn't be necessary on a new truck in 2018.
     
    thelifeaquatic likes this.
  16. Sep 20, 2018 at 6:30 PM
    #2076
    Tibetan Nomad

    Tibetan Nomad Well-Known Member

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    Too damn expensive for my wallet. Isn’t it around $800?
     
  17. Sep 20, 2018 at 6:32 PM
    #2077
    Lt. Dangle

    Lt. Dangle Thinks skiploder needs a hug

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    stuff
    Then it starts learning.
     
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  18. Sep 20, 2018 at 9:02 PM
    #2078
    rosebud

    rosebud Love that transmission!

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    Stock suspension, stock wheels, stock bumper, stock, stock, stock, dammit!
    So if I have a mixed route, city/freeway, would I start in S5 and leave it or do I need to shift as I gain speed? The manual is really vague about this.
     
  19. Sep 20, 2018 at 9:07 PM
    #2079
    NMTrailRider

    NMTrailRider Well-Known Member

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    You can drive in S5 the whole time if you want to. If you have weight in the bed or any head wind at all, S5 would be preferable in my opinion.

    But if you get up to speed, and rpm's are feeling high, just tap it up into S6.
     
    StayinStock likes this.
  20. Sep 20, 2018 at 9:09 PM
    #2080
    NMTrailRider

    NMTrailRider Well-Known Member

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    Yeah, just start out in S5. It'll still cycle through gears 1-5 on its own.
     
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