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2016 OVTune Tacoma 3.5L Manual Transmission / Engine ECU Reflash

Discussion in '3rd Gen. Tacomas (2016+)' started by OVTune, Oct 18, 2017.

  1. Mar 13, 2018 at 6:01 PM
    #3221
    DES2009

    DES2009 Well-Known Member

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    OVTune 1.03(91)
    [​IMG]
     
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  2. Mar 13, 2018 at 6:23 PM
    #3222
    tekoma

    tekoma Member

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    @OVTune - I'm 04B11 running 1.03C 87 tune - I'd be thrilled with B or C if they didn't have the stuttering. Its getting pretty bad with C. I get a pretty dramatic drop in RPM in reverse that causes bucking. The stuttering is getting worse, not better with time. Looking forward to the next iteration.

    Going to flash back to stock in a week - have an appointment at Toyota and if they drive it they will certainly notice the stuttering.
     
    MOC221_ likes this.
  3. Mar 13, 2018 at 6:26 PM
    #3223
    commbubba19

    commbubba19 Well-Known Member

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    You guys confuse tip in with actual throttle maps.
     
  4. Mar 13, 2018 at 6:30 PM
    #3224
    mZiggy

    mZiggy Well-Known Member

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    Alright. Well in that case do you have 1.03B so that you can run that too and see if that's more to your liking?
     
  5. Mar 13, 2018 at 6:31 PM
    #3225
    fzj40

    fzj40 Well-Known Member

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    Still happy with B - 93 - and a PC!!!!
     
    Boxerocks likes this.
  6. Mar 13, 2018 at 6:41 PM
    #3226
    commbubba19

    commbubba19 Well-Known Member

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    No. :-(
     
  7. Mar 13, 2018 at 8:22 PM
    #3227
    filbert

    filbert Well-Known Member

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    In my 12 miles of driving here are the things I noticed:
    - Slight jerkiness when lifting quickly from cruising at a moderate speed (48mph in 5th gear). This is pretty mild and if I smooth my lift it doesn't happen.
    - Surging of engine between 1000-1200 rpm at about 1 or 2Hz that I've never noticed before. This was at a stop light on a slight incline when I was holding the car stationary with the clutch instead of the brake (yeah, I know I'm not supposed to do that). I grabbed my phone to get video but it stopped by the time the camera came up.

    Both of these are pretty minor and I only have 12 miles so I know all the learning is not done, so I will wait to see how it changes. Through all the posts of the various issue, the surging is the one that concerned me the most because I literally have 1" of clearance in front and behind my truck in the garage so it takes some feathering of the clutch and gas to not crush anything!

    [​IMG]
    [​IMG]
     
    tacogravy likes this.
  8. Mar 13, 2018 at 8:53 PM
    #3228
    2016trdtacoma

    2016trdtacoma Well-Known Member

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    Anyone have a 2016 with 0B411 ECU?
     
  9. Mar 13, 2018 at 8:53 PM
    #3229
    2016trdtacoma

    2016trdtacoma Well-Known Member

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  10. Mar 13, 2018 at 9:15 PM
    #3230
    filbert

    filbert Well-Known Member

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    other than me?
     
  11. Mar 13, 2018 at 9:30 PM
    #3231
    2016trdtacoma

    2016trdtacoma Well-Known Member

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    Do you have the 1.03B tune files?
     
  12. Mar 13, 2018 at 11:21 PM
    #3232
    OVTune

    OVTune [OP] Well-Known Member

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    I'll send you them tomorrow
     
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  13. Mar 14, 2018 at 4:16 AM
    #3233
    MOC221_

    MOC221_ Well-Known Member

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    Yep, stuttering is my only major complaint with 1.03C. It is worse before the engine is up to operating temp.

    04B10 91 file
     
  14. Mar 14, 2018 at 6:08 AM
    #3234
    commbubba19

    commbubba19 Well-Known Member

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    Yes, that slight jerkiness I believe comes from the injector cut off being very abrupt when throttle is let off. I'm betting dollars to donuts the factory tune doesn't have as much of an immediate injector cut off when throttle is lifted. I noticed as well if i really smoothly let off the throttle, it doesn't jerk. I guess it could also be related to throttle mapping as well. I'm sure there's a middle ground here somewhere.

    Please be advised i'm still quite enjoying the tune and am really nitpicking issues here. I can definitely learn to live with the touchy throttle tip in. Though i'd prefer it be tamed just a bit. The actual mapping of the throttle feels fine past tip in.

    To clarify, the desire here should not be for an overly aggressive throttle, it should be linear. If i give it 5% throttle, I want 5%, 50% throttle should give me 50%, etc. I feel so many of you want 50% throttle at 5% pedal. That's an unpleasant drive albeit possibly a fun one.

    I'd prefer if possible, OVTune make the standard tune with a complete linear throttle mapping for all modes in all gears. Consistency of muscle memory is key here. For folks who want that aggressive overkill mapping, offer it as an aggressive tune. Many other tuners do that (mustangs, ecoboost, etc).

    Lastly, I'm sure the stuttering thing can be worked out on the dyno. So far I've only felt it once with a cold engine but I'm likely going to run into it daily as I jump on the interstate about 3 minutes after starting the truck every day.

    I have no desire to return to stock but also don't want to keep swapping different tune files. ECU learning is key and I want to give it that time. 150 miles so far and really most of the learning should be done around 500 to 1000 miles.

    :burnrubber:
     
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  15. Mar 14, 2018 at 7:34 AM
    #3235
    2016trdtacoma

    2016trdtacoma Well-Known Member

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    Ya, that jerky-ness when the throttle is releases is noticeable. I try and ease out the throttle to avoid that, but overall, liking 1.03c
     
  16. Mar 14, 2018 at 7:47 AM
    #3236
    pjensen641

    pjensen641 Well-Known Member

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    You guys sure that jerkyness on throttle lift isn't the Toyota drivline slop and axle wrap "springing back". BTW, guys on stock tune have been seeing the stutter.

    I wouldn't be surprised to see that it is caused by some of these "digital" events Toyota has decided to add to the mix. Intake damper switching; Port/Direct injection. Switching these thing mid power band without some VERY careful ECU code would make them noticeable. Especially if the code is sensitive to physical hardware (sensor, actuator) variation. They added all this stuff, then put their B-team software crew on the job. Recipe for failure.
     
  17. Mar 14, 2018 at 8:09 AM
    #3237
    commbubba19

    commbubba19 Well-Known Member

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    It is not drive train slack. Especially considering it wasn't there pre tune and is there now and easy to duplicate.

    I had no stutter stock.

    Honestly, I'd prefer a full OTTO (i believe that is the right acronym) mode and just completely disable Atkinson. The slight mileage hit is worth the increase in drive-ability.
     
    iPaint, iexc and MOC221_ like this.
  18. Mar 14, 2018 at 9:56 AM
    #3238
    tacogravy

    tacogravy Active Member

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    TRD Pro Grill, TRD Sport Hood, BAMF Sliders, Bilstein 5100' F&B, BF Goodrich KO2 265/75R16, Old Man Emu 887 Front, Head Strong 3 Leaf AAL Rear (Overload Leaf Left In), OVTuned 1.03B, De-Badged.
    Hello Guys! First post even though I've read every single thread in both the OVTune auto as well as manual threads since day one. I'm confident that Matt will get our tunes straight for us soon enough!

    That said, I have around 1000 miles on 1.03b as well as ~1000 miles on 1.03c. I just recently switched back to 1.03b for what I think is better throttle response down low. I too have experienced the jerkiness/stuttering many of you have mentioned but of course would take either tune over stock any day of the week.

    I would totally be on board with an Otto only version as well. As a matter of fact, I think it would be great if Matt released version 1.03d or 1.04a like he normally does, i.e. 87 tune and a 91 tune but with the addition of an Otto only option for each.

    Matt, if you read this, are you able to speculate what the HP/Torque curve would look like below 3k in comparison to a non Otto tune curve? Maybe this isn't the best way to quantify an Otto tune relative to a non-Otto tune but you get what I'm saying. People might be more responsive if they knew what they were or were not going to get with an Otto only tune option.

    Thanks!

    Truck.jpg
     
    Last edited: Mar 14, 2018
    iexc likes this.
  19. Mar 14, 2018 at 12:40 PM
    #3239
    Yzkiley

    Yzkiley Well-Known Member

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    rain guards, hood deflector, oem tonneau, BFG ko2's, led lightbar behind grill, highlift jack mount side rail, husky Xact front & rear mats, bedrug, AFE cold air intake with scoop, TB spacer, Spec U exhaust, Hikari - lumileds Led's, any time backup cam and gps, OV tune 103B, TRD pro grille, Cali raised pod fog lights, ECGS needle bearing, Bilstein 5100's, Low range offroad 3-1 level kit, SPC light racing ctrl arms, spidertraxx 1.25in spacers, Ride right airbags, clazzio seat covers, carrier bearing spacer, diff drop spacer.....
    Yup, same problem here. It's very bad when cold and gets a little better when the motor warms up. Still annoying tho, this tune needs some fixing.
     
  20. Mar 14, 2018 at 12:44 PM
    #3240
    Yzkiley

    Yzkiley Well-Known Member

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    rain guards, hood deflector, oem tonneau, BFG ko2's, led lightbar behind grill, highlift jack mount side rail, husky Xact front & rear mats, bedrug, AFE cold air intake with scoop, TB spacer, Spec U exhaust, Hikari - lumileds Led's, any time backup cam and gps, OV tune 103B, TRD pro grille, Cali raised pod fog lights, ECGS needle bearing, Bilstein 5100's, Low range offroad 3-1 level kit, SPC light racing ctrl arms, spidertraxx 1.25in spacers, Ride right airbags, clazzio seat covers, carrier bearing spacer, diff drop spacer.....
    Same problem here. I am going back to stock until this is sorted out. The stuttering, bucking and surging at the 2200-2800 mark cant be good for the motor imo
     
    bshammer0 likes this.

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