TSB-0092-20 is awesome!

I got it done, but it faded out somehow. Can someone tell me if the dealership can do a courtesy reflash? I went, but all they said was that they could not replicate the issue. They didn’t even test drive it.

 

You can't reflash TSB tunes. Drive it more, a 1,000mi or so and hope that it properly learns. Or, the next step is a vF Tune.

 

How long ago did u have it done?

 

I had it done at the end of June, but by Mid July it was gone. The only thing I remember doing is helping someone jumpstart a car. After that the power faded.

 

That is also what I was informed, but it is strange that you can't reflash a tsb considering it is nothing by a file on a computer. Corporate should provide a way to get it removed and reinstalled. By the way, I recently added Premium octane 93 grade, and it is starting to show some signs of life. I will run it a bit more to see what happens. Maybe the t-sb requires higher octane, or the somehow the previous fill was contaminated, but boy am I concerned. I had never heard of a tsb going bad or stop working. I did jump start someone, but I don't know how that could affect a tune. Thanks for the insight.

 

Have u tried driving with the ect power button turned on? Ive found doing so every so often can help keep things stirred up when its not on.

 

I have, but I don't find it to be helpful. I have noticed that driving in the sequential shifting mode does help, but the best it has driven was when the t-sb 0092-20 was just installed! The gears and power held up great, and the drive was smooth! Now, it feels like it has DIRTY FUEL INJECTORS. That is best way I can describe it.

 

It looks like vF will have a way to upgrade and downgrade ECUs soon. Corporate would never want to downgrade anyone.

My bet is on a bad tank or that jump. If it was difficult, it might have reset the DTCs.

 

I agree. I didn't have a Tacoma before, I had a Tundra. However, this Tacoma is peppier than my Tundra. I don't have the lag people talk about, nor does this vehicle gear hunt in any way, shape, or form. I don't know how to check what TSB I have, but I have no complaints about the truck's transmission whatsoever.

 

If u have a 21 it would have the latest software update available already installed

 

Have you disconnected the battery since the jump / adding 93 octane? The computer should be able to tell the difference for the fuel, but disconnecting the battery for a few minutes to reset the computer is a decent shot

 

Just got a pedal commander from a friend that sold his 12 so he no longer needed it and I got it for free. This just makes that update even better, no lag whatsoever at all anymore, barely touch gas and it's gone like bat out of hell.

 

Going in to the dealership Saturday. Called them about the tsb 0077-16... is the 0092-20 just the newest update yet the same thing? Do I need both? HELP!

 

Thd 092-20 isnt available for any tacoma older than 2019. I think the previous tsb came out in 2018 and would have 18 on the end of the tsb number instead of 20

 

I wonder if you drive like a grandma it might be "relearning" your driving pattern.

 

Finally had the TSB performed as part of a warranty visit as I hit 36K miles on my 2019 (there was a "foreign object" in my driver seat that kept poking my leg LOL). I only have a few miles on it so far but early returns are good. The strange 3rd gear rev-bog-rev dance seems to be eliminated and the premature lugging shifts into 4th and 5th seem to be addressed too. Glad I finally had it done. Shifting dynamics significantly improved.

 

I 100% agree. I'm on the fence now re: a tune since the Truck actually drives great after this TSB.

 

Oh ok thank you. I've got an appointment for tomorrow with the dealer. I mentioned tsb 0077-16 to them so we will see what happens.

 

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i bet the ECU is retarding the timing due to low octane. toyota says 87 or higher but these engines really perform best on 91 or 93. try running 87 for a few thousand miles and keep an eye on ignition timing. now run 91/93 for a couple thousand miles and you will see the advance in timing. the difference is substantial.

 

I'm curious how many opting for the KDMax tune are coming off TSB-0092 versus earlier ECU codes. I really do not see the need for a tune based on what I have experienced so far, even with a 180 lb shell in the back.