Tacoma - OVTUNE - VFTUNER - Update Info and Original Development

21 is another ecu? Ugh

stupid Toyota thinking every year needs a new one..

 

Would there be any reason to flash my 2020 from 04B80 up to 04B81 besides it being the newest available to the truck? Basically asking if anything major was changed

 

That’s basically it. ovtune hasn’t said anything about changes yet

Based on past experiences, there is usually a noticeable difference (for the better)

I’ve gone from 04b12 -> 04b13 -> 04b14

 

Thanks for the info!

I'm guessing that 04C20 is MT and 04C00 is AT?

And old OVT quote:

It's up to you about what you want to do, but . . .

 

gotcha. Thanks for this tidbit. Been away from the forums for quite some time. Time to track down that thread on updating ECUs

 

It’s in @tonered signature, 2 posts up

 

wicked! Thanks bud.

and thanks @tonered going to dig through your thread on the process.

 

You're welcome!

All that you need is in the 1st Post.

 

From the TSB:
Some 2019 – 2020 model year Tacoma vehicles equipped with a 2GR-FKS engine and an AC60 transmission may exhibit one or more of the following conditions:
-> Lack of power
-> Delay/Hesitation
-> Frequent shift change
The Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of these conditions occurring. Follow the Repair Procedure in this bulletin to address these conditions.

In the past OVTune has said that they include things that can't be included in a tune. IE Some coding changes that only Toyota can do. So there is always a benefit to being on the latest TSBs.

 

@Saeros Just downloaded the CUW zip file, and wondering if you can tell me which one is for the 04B81 update from 04B80


thanks bud

 

If this is the info from the tsb and they are doing this kind of update for 19+ means we all should get an update then ugh cant wait to see what actually is changed from ovtunes pov

 

HA a quick google search led me to Tonered's thread telling me 0023-20 is what i want!

 

Oh man. Hopefully you didn't pay for that.

If you did happen to pay, did you see a USA TSB number for those?

 

No I didn't pay for anything, grabbed these from the links Saeros initially supplied.

 

The entire reason for the ECU Update thread was because dealers and Toyota did not see fit to actually update folks without a fight, esp the MTs. You can try to get this update at the dealer, but if you already have the OVT / Tactrix, why get an aneurism over it?

Hahaha! Now that is pretty funny.

BTW, all CUW files can be opened in a text editor like NotePad. The header info will give you a lot of that info:



Beyond that, the TSB updates are somewhat foolproof. It will not flash a CUW that is not applicable to your Taco because of that header info.

 

Perfect!

Big time credit to @Saeros .










Ohhhhh! The Mac window over the TSB PDF looked like you were inside of TIS.

 

Ha yeah im inside on the home computer, the PC notebook is charging now.

The version of Techstream i have is the one you have supplied a link to v14.20.019. Should I be at all worried the Service Memo states I need v15.00.028?

 

That was on TSB-0043-20 for 04B14 also. I had no issues. In fact to flash CUWs, you don't even need a fully functional version of TS as the CUW is an executable. We were able to flash 2018s with V12 even though it would not connect to those or newer Tacos.

 

Sweet! Just double checking thats all

Ill prob get to this upgrade tomorrow, and will follow up with how it goes.

 

No problem. It is good to ask.


Just follow the steps in the ECU Update 1st Post. The TSB flashes are very stable, but there is a chance of soft bricking, unlike OVT.


Looking forward to the report.