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Tacoma - OVTUNE - VFTUNER - Update Info and Original Development

Discussion in '3rd Gen. Tacomas (2016-2023)' started by OVTune, Jun 9, 2017.

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  1. Feb 2, 2019 at 6:48 AM
    Ruggybuggy

    Ruggybuggy Well-Known Member

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    Or you could use Techstream to clear the codes which would have the same result.
     
  2. Feb 2, 2019 at 7:00 AM
    paleh0rse

    paleh0rse Well-Known Member

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    I don't think it's a matter of simply clearing codes. The battery disconnect also clears residual "learned" variables that appear to be causing issues with the tune.

    Don't try to shortcut the instructions. Do exactly as Mat suggests.
     
    ChickoSM1808 and yotanut like this.
  3. Feb 2, 2019 at 7:01 AM
    Gjr003

    Gjr003 Well-Known Member

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    Thinking of doing the same keep us posted
     
  4. Feb 2, 2019 at 7:01 AM
    lapoltba

    lapoltba Full Bridge Rectifier

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    There's a function entech stream for doing exactly this. It's called something like clear stored values.
     
  5. Feb 2, 2019 at 7:04 AM
    paleh0rse

    paleh0rse Well-Known Member

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    That would be different than merely "clearing codes." If techstream also has a way to clear all "learned values," then maybe that would be enough.

    I personally wouldn't take the chance, though. It's not like it's difficult to disconnect the battery...
     
  6. Feb 2, 2019 at 7:12 AM
    lapoltba

    lapoltba Full Bridge Rectifier

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    It is not just clearing codes It clears all learned values. I have used it before...
     
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  7. Feb 2, 2019 at 7:28 AM
    habanero_taco

    habanero_taco Well-Known Member

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    To clear up any confusion... if you're worried about old learned values stored in your ECU, do the following:

    If you've already flashed 1.05:
    Disconnect battery for 10 minutes or so
    Start truck, let it idle for a few minutes if you want to speed up idle learning, because you've cleared idle also with battery disconnect.

    If you're flashing 1.05:
    Flash truck per the process
    Start the truck to ensure the flashing was successful
    Turn off truck, disconnect battery for 10 minutes
    Start truck and do idle learning process

    That's it, you're good to go!
     
    jholc21, yotanut, SurfratTX and 3 others like this.
  8. Feb 2, 2019 at 7:45 AM
    SpeySquatch

    SpeySquatch Function over Form

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    He specifically said there is nothing better than disconnecting the battery...
     
    Last edited: Feb 2, 2019
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  9. Feb 2, 2019 at 7:57 AM
    lapoltba

    lapoltba Full Bridge Rectifier

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    I'm not asking anything. He said "nothing better" because it is the easiest way for ANYONE to clear learned values. It does not require any additional software or computer knowledge. He already has to deal with computer literacy issues with the tune even though it is dead simple.

    I was merely confirming that Techstream does in fact have a function to accomplish the same thing as @Ruggybuggy suggested.

    It's not a matter of ease, it's a matter of preference and convenience. If I'm sitting in my truck to flash and it's -10 degrees F out, I would much rather click a button in Techstream (it's on the same computer I use to flash), than get out of the truck and screw around under the hood with the battery.
     
  10. Feb 2, 2019 at 8:57 AM
    jbehrens5898

    jbehrens5898 Well-Known Member

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    PM Sent
     
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  11. Feb 2, 2019 at 8:58 AM
    SpeySquatch

    SpeySquatch Function over Form

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    -10...makes sense.
     
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  12. Feb 2, 2019 at 9:28 AM
    SurfratTX

    SurfratTX Well-Known Member

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    To the point!
    Thanks Randy!
     
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  13. Feb 2, 2019 at 11:04 AM
    yotanut

    yotanut Well-Known Member

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    I flashed back to 1.05 87 and followed the instructions to a “t” including the battery disconnect. Took it for a 5 mile loop at 55 mph (completely warm engine) had 8 misfires. Something else is going on. Hoping Mats testing goes well this weekend.
     
  14. Feb 2, 2019 at 11:09 AM
    TWTaco

    TWTaco Well-Known Member

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    Quirks of this 3rd Gen :annoyed:
     
  15. Feb 2, 2019 at 11:50 AM
    ChickoSM1808

    ChickoSM1808 Well-Known Member

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    I'm back on the 91 tune and all seems good again.
     
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  16. Feb 2, 2019 at 1:10 PM
    SC4333

    SC4333 Well-Known Member

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    Consolidating some information here for those interested. I've never had a vehicle where clearing the DTCs would not reset learned values, however Mat alludes to this potentially being an issue with some Toyota ECU's. At least thats how I interpret his comments. I will say though, having to disconnect the negative battery terminal is a bit annoying. Thanks Toyota!
     
    2017TRDpro[QUOTED] likes this.
  17. Feb 2, 2019 at 1:12 PM
    Vlady

    Vlady Well-Known Member

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    Reflash that I did last Sunday helped and results were better after 200 miles.On a few last drives I had no more than 5 misfires.
    So this morning I reset ECU. Started up and it was 0. Went shopping and on the way back had 2 - 0 on startup and 2 while navigating through parking lot.
    Took a truck to the hills and it performed even better. Spooled to 90. Zero misfires..
    Hope the herpes is cured ...
     
    Last edited: Feb 2, 2019
    paleh0rse, lapoltba and Taco16LB like this.
  18. Feb 2, 2019 at 3:34 PM
    OVTune

    OVTune [OP] Well-Known Member

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    OVTune
    Not available until new Flash Manager is released.. an update to Gearlock has been posted on the first page. Flash Manager is very very close to complete.

    Other than that gear locking is working perfect so it will be available release day of FM update.
     
    Last edited: Feb 2, 2019
    taco 16, ihatemytruck, Rus$ and 17 others like this.
  19. Feb 2, 2019 at 4:34 PM
    erok81

    erok81 Well-Known Member

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    Woohoo!
     
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  20. Feb 2, 2019 at 5:07 PM
    Gjr003

    Gjr003 Well-Known Member

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    Could we get definitions or explainations of each choice? How much more powerful is performance than base? Is 87 performance better then 91 base? How does 4 and 5 feel compared to base? Etc

    1. 1.05 base mpg
    2. 1.05 Performance 87 octane, Stage 1 91 octane, Stage 2 93 octane
    *3. 1.05 Gear Lock map
    *4. 1.05 Legacy Shift(All drive modes will use a modified ECT Shift table)
    (ECT enhances performance, does not modify shift)
    5. 1.05 6900 RPM
     
    TRDOBSESSED likes this.
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