2016 OVTune Tacoma 3.5L Manual Transmission / Engine ECU Reflash

For autos with issues

 

FTFY

 

I've got a '19 OR DCSB MT. No weight adding mods yet. Torque reports it's calibration ID to be 8966304B4100 followed by 896650408000. I'm assuming that gets shortened to 04B41. It seems to run pretty good on 89 or 93 Octane but still is doggy under 1800 rpm and has some weird on/off power responses between 2000 & 2500 rpm. They smooth until it goes hog wild at 3500. Even with these quirks, it sounds like this is still a lot better than early 3rd gens, so my baseline may be higher than you early adopters. I'm hoping these get smoothed out even more with OVTune and I pick ups some low end grunt for city driving and passing. I'm at 2600 miles and plan to keep the truck for at least 10 years. I have Trident's ADM kit and hope to get it put on this week. The sale is pretty tempting. Is it worth it coming from 04B41?
Thanks in advance,
JSP

 

These are reasons why I’m a little hesitant to get the tune...

Not sure if these things have been taken care of yet and it seems like the majority of the people that do have the tune are switching between the different versions so often that truck reverting back, due to learning, may not be realized.

 

I seem to have a unicorn? I don't notice much change after the first trip with a new tune.

After 4k or 6k 04B13 (thanks again!), I did a long battery disconnect including a terminal touch and felt only a slight difference before and after. I ran 87 FOB and 91 FOB for three tanks (over 1,000mi each). I noticed no degradation, but FOB was touchy the whole time, so I settled on 87 Base for a very long time (over 5k). It was nearly perfect the entire time, except that I missed the torque hit of FOB.

With the FM update to include the DTC and LV Reset functions I am running 87 FOB again. It has been perfect after the first 5min to over 400mi on the end of the first tank. Beyond that, the very bottom of the rev range is a lot more mellow, which was my biggest problem previously. I was stalling too often in traffic trying to launch happily. Since reinstalling 87 FOB, I have yet to stall it or feel a touchy takeoff at all, including many of the same situations where it happened in the past.

Like I caveated this with, this is my unicorn.

 

super stable over here.

 

After flashing to 87 FOB I noticed that the truck doesn’t have the power surge that it use to and starts off nicely. However feels like it’s being robbed of a little power now at mid RPM. Does anyone else notice that? But it does make shifting around town a lot nicer. Cruises good on the highway in higher gear nice too.

 

I've been in this since the beginning and I've been running the current 87 tune for a while now. Zero learning issues (MT) and with the upcoming 2.0 release I think a lot of the issues you are reading about will be addressed. Mat is gutting the stock shift logic and replacing it with his own. That's a huge bonus for AT guys.

 

What were you on before 87 FOB? If a higher octane, you will miss a bit of power, but that low end rocks.

If you want it all, 91 / 93 FOB is the answer.

 

With 87 fob I get good takeoff torque, but it definitely pulls it's punches in the mid range when I lay into it.

 

I got the reset learning stuff to work. I’ll give 87 FOB another try

 

You and I both brother. I've got 2000+ km since my last flash to 1.05 FOB 91 and it's still there (same old story). Throttle also went mushy again and stayed that way.

If 2.0 doesn't get rid the stutter I'll need to go the custom tune route.

Maybe I should just put my request in via Zendesk now lol

Fucking Ginger truck!

 

Same with the 91 file on my truck. Mid range "torque hole".

 

I too still have the dip/hesitation around 2700 rpm (currently running the 87 non-FOB tune). Also have better luck on 93 octane fuel, just a bit more subtle. Now that I have the TRD exhaust and intake, you can even audibly hear the surging, like its starving for fuel or something. Seems like this issue was all but gone in some of the older revs of ovt software. It is definitely present on the stock tune, including 04B13 TSB version. Hoping 2.0 addresses this!

 

Thanks for the reassurance... Just paid for the license!

 

Same. Considering going back to 1.04 to get that mid-range torque back, but 1.05 is better elsewhere. Anxiously awaiting 2.0.

 

Interesting observations, but then again I feel like it wont be 100% perfect as OVtune isn't there physically tuning each and every truck.

 

Inconsistencies abound with this truck! Some days I'm back at the pre-tune, 2nd gear is completely worthless in a parking lot situation, but I still have the accumulator so getting back into 1st is a shit-show...meanwhile other days I can almost break the backend free in the same situation. I'm beginning to think this is less of a tune issue and more of a global warming issue. If OVTune guy would ever let us know what he's wearing, I think we'd all have dramatically different driving experiences.

 

To be honest, neither did Toyota.

 

That's fair to say I suppose, but the number of variables are lower.

Some owners have upgraded exhausts, some have cold air intakes, some have x,y, and z and expect it to be perfect?