Tacoma - OVTUNE - VFTUNER - Update Info and Original Development

This has happened to me several times. No real consistency to why either.

 

I didn’t think so either. It was almost bogging. I’m gonna reflash again, should I do anything different this time around?

 

no and I don't recommend reflashing either. If you want to pm your email I can send you some things being worked on

 

I thought it was just me! I need to do more driving so i can get more solid data but im experiencing a couple issues ill prob post tomorrow in detail if i can.

 

PM Sent.

 

Make sure you provide the feedback to OVTune so whatever issues your having can be addressed.

 

Dongle plugged in? Good connection to laptop and OBD2?

 

Make sure the truck is ON, not accessory, and the engine is off... you won't get anything if you're in accessory

 

Alright, truck is flashed! Now idling

I did have to restart my TCU midway, funny thing is it says don't turn off engine. The directions say to turn it off (2nd button push of course).

So, I canceled the upload, turned off the engine from second button push, turned it back on and wrote the TCU successfully.

@OVTune Should I be worried? Seems to be idiling ok...however there was a few rpm changes during it's idiling so far

 

Let it do its thing for now

 

Can I turn it off when it is done, or do I have to drive it immediately?

 

My truck fell flat on its face under full throttle acceleration today. Leaving a toll booth, I floored it. I wasn't watching rpms, but toward the redline of second gear it felt like the engine was starved for fuel. It almost felt like the engine cut off for about a full second. The deceleration was great enough that I lunged forward as if I het the brakes. Really wierd!

I had very similar issues, but in reverse sequence. My initial 87 load ran like a champ. The 91 load had jumpy rpms at idle and would hold gears a little longer than expected. Today, I ditched the 91 load and reloaded 87 and the truck runs, idles, and shifts perfect on the 87.
*** had over 1000 miles on each before switching back to 87 ***

I routinely find myself in 5th at 35, but never 6th.

I am back on 87 now and I think I like the daily drive on 87. I'm getting about 3 mpg better compared to 91 and don't feel like am sacrificing any benefits.

 

I’ve had this exact issue 2-3 times now.
Only does it 1st or 2nd gear, Full throttle, and it almost seems like it revs into red.

 

Thats probably just the engine. It's a truck engine not a drag race engine. After a certain rpm the power and torque drop significantly. Also, these trucks were not designed for high rpm so the fuel pump probably couldn't keep up

 

I have to disagree, truck engine or not the engine makes its power up top. We are hitting the fuel cutoff for sure. Question is why? This shouldn’t be happening on an automatic in D.

 

Toyota designed the engine for efficiency so they didn't think of anyone running to the redline. So they put a fuel pump that would supply the right amount of fuel for an efficient driving style, i.e. not redlining

 

Also, it's not power that you feel, it's torque. Remember, power is how fast you hit the wall, torque is how far you take the wall with you

 

Anybody tried to reflash back to stock tune to see if the hiccups are still there ?

 

Yeah you can turn it off when finished

 

OK, update.


Just finished the flash for the 87tune AT.
Let idle about 22mins.

Went for a 5 mile break-in drive.

All I can say is... thank you @OVTune
Thank you to everyone on this forum who gave useful information.
I was skeptical at first, but 5 miles ranging from about 5mph all the way to 60ish mph i have a serious tacoboner.
My truck feels not only lighter, but more nimble.
The shifting is out of this world.
Tried the ECT with it too...freakin awesome if you have open uphill road.
Can't wait for the upcoming Summer adventures!


#Tacoboner