Anyone NOT Impressed with OVTune?

I assumed as much. I've only heard second hand from people that have both that it's a pretty good combination.

 

I had no idea, that's interesting. Thanks!
I tried googling it, is there somewhere I can read more about this? I'm just really curious now.

 

Have you judged the tune AFTER 3-500 miles of it settling? It’s completely different and mpg is better. The power and response is immensely better especially with the 91 base tune. My truck just goes and it holds power better. Ive tried both the 87 and 91 tunes. I couldn’t be happier with the 91 base tune...it is simply fun to drive and puts a smile on my face while I get 20 mpgs in a lifted truck with bigger tires and armor. That being said, the double overdrive in the AT with the stock 3.91 gears sucks with hills and everyone has been on a hill and noticed it drops to 4th and screams...so I will also be putting 4.88’s in to make it the ultimate.

try the 91 base tune.

 

I’ve been running 91 performance since the release. Off the line performance was great, but for parking lot driving and backing up the tip in was too much. Also too much gear hunt.
Finally settled on 91 base, actually liking it fair bit better than the performance version.

I’m really looking forward to complete rewrite of the eprom. I feel that we’re limited with what we Mat can do with Tacoma tune until ecu “schema” is rewritten.. or something like that

 

It’s just how ATs work in general. Instead of a clutch to take up friction and heat you have a fluid that heats up. In MT if you the slip the clutch really slowly for a super smooth gear shift experience you create more heat and wear in the clutch. The same happens to the AT fluid so the faster the shift the more “bang” you feel but the fluid doesn’t have to work as hard

 

I had base 87 for about 1K miles, 87 GL for about 1K as well, and Ive had 87P for about 3K miles now.

Im might just fill up with 91 next time and try that out next tank.

 

I’m not sure what that is supposed to mean, barely noticeable gear and RPM...
If the solenoid gives the shift command at the wrong time that’s another issue entirely.

 

I knew that about manual transmissions, clutch plates, etc. Just never made that connection, makes sense now when it comes to ATs.
Thanks for explaining that!

 

Next time you are up to see our local gear master let me know. He did my 4.88's before I got the Tune. Both made driving way better than stock. The gears are a one and done - the Tune is continually being improved and offering options you can't get in stock. Worth every penny IMO. The Mother Ship should be ashamed of the product they released in comparison to the Tune.

 

I didnt know there was a tune for 4.88s

 

There is not one - yet. It is coming. The Tune simply makes the entire engine/trans/gear system perform better. Tune (s) will be coming for 4.88's and 5.29's which will make things even better for those of us who went this direction.

 

Does one of the 87 tunes help get the truck to stay in 5th or 6th at interstate speeds 70+? I understand a steep incline would most likely need 4th, but I am referring to slight inclines that seem to require a constant battle with 4-5-4-5-4 shifts. All occurring while using cruise. Thank you for any input.

 

Helps keep mine in 6th at 80mph aslong as its flat and no wind against me. Otherwise it will shift down to 5th. The difference is that it doesnt shift anywhere near as hard as stock. Its a lot smoother.

 

The tune isn’t like some sort of octane booster that need to settle and get flowing in the truck. The minute it’s flash it is the minute the changes are made. It’s not some sort of self writing code or something crazy.


Personally to me it’s really hard to justify that much money for a tune. I realize you get a little bit better torque and HP gain and a smoother curve but for the shifting none sense, Toyota should of fixed the issue. I already had one TSB flash when I bought the truck because the cruise control was the most awful thing to use because of the constant up and down shifting and not being able to hold gears, I went on a 9 hour trip and had to shit it off after 4 minutes. My buddy was looking at me like wtf is going on. The flash helped but it’s still not close to what it should be. Maybe one of the revisions would help more.

 

Thanks! That sounds good. I’m fine with a drop to 5th or the occasional 4th, but on a calm day and the slightest incline it gets ridiculous with my stock setup. The 87 tune would be the only one I’d be interested in to solve that problem. I’m personally not looking for hp gains etc just the holding of the correct gear.

 

Any version of OVtune makes a big difference if you do not have a Shift Sense Pro because the Toyota shifting is terrible . If you have an SSP well ,it is a wash if you want to use 87 octane fuel and OVTune ,if your truck does not shutter and throw false misfires . If you use the 91 octane (never tried the 93 because of not available here ) there is a HUGE difference in performance . It is awesome , but again if your truck has the shutter and misfires it may or not be a be not a good thing . The shutter and misfires may never be felt unless they are monitored with an OBD2 app such as fusion , and as per MAT at OVtune may be false , because it is caused by the torque converter . Some trucks are said to have the shutter and misfires on the Toyota tune . There is a fix for the shutter and false misfire problem coming soon as per Mat by OVTune , something that Toyota does not offer ! If this fixes the problem , and allows the use of the 91 octane tune without the misfires and shutter ,then this is the best thing you could ever do to the truck ! Waiting on the fix !! Edit , if it keeps the performance gains .

 

91 base is where I noticed a big power and response increase. Mat at OVtune did state there is not power improvements with the 87 octanes, just better shifting, throttle curve and response

 

I'm on 1.05, AT 265/75r16 with about 800lbs of consistent weight. The tune does improve the drivability and response of the truck but gear lock using ETC is what makes the $700 worth it.

 

Toyota states the ECU miles to settle into its learning cycle when you buy the truck (and they claim it takes upwards of 1000 miles) It’s not magic, it’s software. Yes changes are present as soon as you flash but the refinement (especially mpgs) is noticeable once several hundred miles are on the tune. I’ve done and recorded the tests at new and after settling. The data doesn’t lie

Again, the stock gears suck. Tune +4.88’s equals awesomeness

 

I can NOT speak to your question directly. I was very very close to pulling the trigger on OV Tune, and still may, but I decided to take a chance on a used ShiftSense Pro (~$120-130 on TW) and am very happy with it. A different approach for sure but for my style of driving it is just what I needed.