2016 OVTune Tacoma 3.5L Manual Transmission / Engine ECU Reflash

Patient with an $800 purchase, makes sense.

 

I'm a patient B10 guy, patient with my bux. Grateful to you and @MOC221_ for your testing and early adopter status.

I'll continue to wait for a GA release for B10...

Hey Ares, update on the neighbourhood kerfuffle from a month or so back? Good in the hood? Lol

 

I was being sarcastic. I have been told to be patient multiple times. So that's my go to quote now

 

Haha! Peaceful as hell in the neighborhood now. Christmas lights a shining and the holiday spirt in full bloom

 

Awesome...best of the season to you and yours!

 

good luck guys, really hope you all get sorted.

 

Thanks man! Hope You have a wonderful Christmas and New Year!

 

Me too. Patiently waiting a b10 specific tune, or a way to update my ecu to b11orb12.

 

What are the symptoms of a failed CPS?

 

just so you are aware, pcmflash provides no actual tables or maps to tune anything.
bitedit tables are very far off with many things missing. Absolutely nothing like accessport or any of the like.
Making a "tune" with it would be near impossible to do correctly as you don't even have access to VVT, proper fuel tables, etc.
you also did not list the cost of a tactrix cable.

The issues you are experiencing sounds more like an issue with the truck than the tune. If you have 04B12 ECU, my first thought is Crank sensor issues. The truck should not have, in your words "hilariously bad" drivability from 500-2500 rpm. Nor should there be several hesitations.

This is not a beta or a test tune. The only people who have a test version of the tune is 04B10 ECUs due to changes in code.

 

Not trying to be negative but you really should have contacted Matt when he gets back on the 2nd before criticizing the tune. You may have issues that he can resolve but flaming his tune on the forum before contacting him makes it less likely he will put any effort in helping you. You mention that there are other options that are cheaper and would have resulted in a better tune. Why didn't you purchase them instead of the OV tune?

I just bought the OV tune and in the process of tuning my truck. After I tune I will give a fair assessment of how it performs. If I do run into driveabilty issues I will contact OV tune to resolve them first before posting. If there are still issues that can't be resolved then I will report my issues and weather the tune was worth the money spent.

 

The things that were listed will not create a better tune, nor will it create a tune at all. They are simply means to flash the ecu.
pcmflash does not give any ability to create a tune. it is a flashing tool.
bitedit gives means to edit a rom file, with completely incorrect maps and 99% of tables missing entirely. to compare bitedit to accessport software or hondata for example, is like comparing a space ship to a cardboard box with wings.
bitedit/bitbox flashing also uses zero safety protocols to prevent ecu BRICKING.


I' also like to point out this is why everyone with our kits get free updates. Because it will only continue to improve.
The sheer complexity of the ecu, complexity of the ignition, and torque logic paired with the fact there is extremely limited tools means that the chances of taking any and all available tools to a local tuner and making a "better tune" is 0%.

Also if anyone does have any issues, or concerns please feel free to share, and also tell me. That way I can investigate and fix any issues with an update.

 

I don't agree with this at all. I think all honest opinions and experiences with the tune should be posted. I agree that he should also reach out to OVTune and work to resolve his issue with them, but by posting here as well, he's providing additional feedback that can help other users make a decision or be more informed about potential fixes if they have a similar experience.

Tuning these trucks will be an ever evolving process and everyone should share opinions, good or bad, with the group. It just helps everyone involved.

 

I'm not saying he shouldn't post a bad experience but jumping to conclusions before OV Tune has a chance to resolve his concerns really isn't fair. Like Matt had replied, there might be an issue with the truck and has nothing to do with the tune. Flying off the handle in a tirade isn't solving anything.

 

with how many issues we have found with the stock tune, and stock parts, nearly every time now someone has loaded the tune and had a bad experience right away it has been:

1. crank sensor recall issue (several users here have reported they had the issue even when not on the recall list)
2. 04B10 ECU / calibration update require from toyota (like AT 04B01)
3. Toyotas OEM injector control logic, which is unrefined from factory (and not changed on current tunes) which causes stuttering on high load from idle / low RPM. We aim to fix this. It was an issue that was only recently figured out after Toyota admitted this to a user on here. (that their stock D4S calibration is bad).


the current issue we are working on resolving (which is admittedly Toyotas fault, not ours) is the D4S injection crossover.

 

Yes Im very aware which is why im questioning the price when all we can do is read and write where most other solutions you can also edit for the same price or less. As well as the MT not having a TCM to adjust.

I grabbed a TIS subscription to get the test procedure for the crank sensor and it passed that test both hot at cold. Its also 100% the updated part with equal sign looking mark. Techstream itself shows no errors or issues either. Truck was built Aug 2017. Truck has no updates for anything.

After doing that I went back to the stock tune and the issue goes away, its easy to pull away from a stop sign and rolling second gear is smooth. The second I flash the tune file labeled 87 Octane it drives terribly inconsistent. I tested each file two times and the 87 tune even broke up at WOT near the top of the RPMs. There is an unlabeled tune which Im assuming is the 91 Octane tune, I loaded this and filled the tank with 92. The truck does everything your original description and all others on this forum have described, rolling off the line is good and rolling second is smooth and consistent. I put about 100 miles on the unlabeled tune with 92 in the tank and Im far happier with the results.

So there are a few options in my opinion. The 87 file is screwed up, the file names were named backwards and I was running the 91 tune on 87, or winter gas is messing with the tune. I know for a fact we had issues with 93 pump winter gas recently as when I tested it for my race bike it came well under spec at .695 when it should be .73 or so. Which caused all kinds of issues for obvious reasons. I'd like to run the 87 tune, but I think I might need to hold off on actually figuring this out until our shitty winter gas goes away. Two things ill do in the short term is 1) start datalogging with openport, if it starts occurring again hopefully I can get some actual data behind it and 2) try the 87 tune again but with 92 pump in the tank, ill do this after I get a few hundred miles running the unlabeled tune.

Im not trying to flame anyone, I spent 800 bucks on something and I expect it to work as described. I will go back and edit my original post with an update pointing to this one.

 

If you can get a techstream log of stock tune 87 and select All cylinders misfire count I bet we can get it resolved.

If you'e seeing very high misfire counts you may still have the crank sensor problem.

I will explain later about editing, prices, etc.
For one, there are several things that are very different in the MT ecu that are not I'm the AT and the AT is incapable of doing.

 

So to be clear anyone with the 04B10 needs to wait for an update from Toyota? Until then our tune is a "test tune"? Good info for any 04B10 M/T owner wanting to purchase the $800 tune.

 

I have this same question @OVTune .

 

Out of curiosity, how many miles did you put on the 87 tune? I did notice the weird dip in power at the low end you mentioned when I first loaded the tune, but it went away after 20 miles or so. I'm not sure if it's related to the ECU learning procedure or what.