Techstream and 04B33

personal preference. Ski

 

You know with everyone talking about rough idle for a few minutes and wonky shifting I don’t even know if I had that. Makes me wonder. I’m on the 04B33 now for sure. I’m pretty sure I reset the LV’s and AT twice but that darn incomplete DTC’s is bugging me. Maybe it’s in my head and once again I’m overthinking

 

You're overthinking it.

 

Agreed. I have a bad habit of doing that.

 

LoL! I noticed.

 

I’m just leaving it and let things settle in. Then I’ll play with my tune pack

 

Sounds like a good plan.


When you flash the TP, you can decide what you want to do with the Resets. This is @OVTune 's guidance:

"Regarding reset AT / LV.


So this isn't confusing

Resetting LV / AT after a flash = not required

Resetting LV / AT after a flash = is not harmful, and may be done at your discretion

Resetting LV / AT after a flash = Should be done IF you have drivability issues (very odd shifting behavior, very odd engine behavior, or you hear any knock/detonation)

Resetting LV / AT after a flash = May make the truck run noticeably rougher for the first few miles (especially the transmission)

Resetting LV / AT should NOT be done just because you feel like doing it.

Resetting the LV / AT should NOT be done if you haven't recently flashed.


If you Reset LV / AT right after a flash = the first 25mi to 50mi, the trucks shifting characteristics can be ignored


If you Reset LV / AT or even flashed the truck and are making judgements without putting AT LEAST 25 miles on the truck, you are not getting an accurate representation of how the truck will perform."

 

Thanks. That is perfect

 

You're welcome!

 

perfect description, should be a sticky. Ski

 

Thanks!


Or, just postwhored.




@Shellshock has a nice OVT guidance thread. I'd suggest that for a sticky.

 

@Shellshock 's thread:
https://www.tacomaworld.com/threads/vf-tuner-installation-guide-faq.695951/#post-24612379

 

For me, I only reset the values one time, when I went from 04B31 -> 04B33 ECU Upgrade via TechStream. I have not reset since, and did not reset after applying the OVtune. I did drive around for about 3 or 4 weeks on the stock 04B33 before applying the OVTune. Everything is good and settled, no issues.

 

It is a choice to do it or not. Like I said, it did too much good the first time, so I'm kinda hooked. It was a bit of a PITA when I was trying my edits, but other than that, I don't mind that early weirdness.

 

That’s what I’m going to do. Give it time to settle. So the only true motiveless difference with the update is shifting not performance right?

 

For the TSB? Nah. There were changes on the engine side also. The description in the TSB is not quite accurate from my experience.

Still, the OV Tune is a significant improvement over the TSB.

 

Are you guys running OV on 87 or 91 octane?

 

I've run both 87 and 92. The 2.0 Tunes were the only one to ever show an advantage running 92. I get a good bit more throttle response and enough of an MPG bump to cover the cost difference.

 

Yea that’s what I read, thanks.

 

You're welcome.