vF Tuner for the 3.5L Tacoma

I just put name and order number on mine

 

The order number can be found if you set up an account on the OVT website with the email address that you used for your order.

https://www.ovtuned.com/account/login

 

Gotcha. I'll be sure to include all of that.

Thanks!

 

After programming the current gear x-gauge into my ScanGauge I have a correction. The shift at ~75 where I found the rev limiter was a 2nd -> 3rd shift. The values in the top end of the table were 76.029, which more closely matches what I was seeing.

I have adjusted the following for my next flash:
1 -> 2 upshift: bumped angle 75+ by +5% to get a little more out of first gear (30.659 -> 32.191 & 33.149 -> 34.806)
2 -> 3 upshift: dropped the angle 95.703+ by 2% (76.029 -> 74.508)

I am going to leave the reduced 3 -> 4 shift points mentioned above as I rarely do a WOT pull past 100mph.

 

So my weekends coming up and I’m going to dive into VF Tuner a lot. So far I’ve adjusted shift points, throttle limit, smoothed out the air load tables and upped 1st gear limit to 100. Is there any other tables I should look into adjusting?

 

Here are the shots of the map values i edited. I went to a side road and let 1st gear down to 700 multiple times and did not once have it jerk me around. On throttle is a smooth transition and when you give it some punch it will go. I will continue to edit and work through it, but this file will remain for now in a safe place so i don't accidently screw it up. I could drive on this one every day and not worry about it. (where is the fun in that though)

The primary throttle is a complete redo (as you can see) testing a theory

The primary throttle gear 1 is a hybrid of stock and Matts with some interpolation from 26 degrees up to a point and 26 degrees down to a point. Not all done at once, it was done line by line

Throttle request to airload was modified, first by 10%, then again later by an additional 10% (not 20%, it doesnt work that way) They were not done as a whole field, rather in rows and columns, any numbers that went above 89.5 i returned to 89.5

Smoothing was per matts instructions, with a twist. I went a little further up down and left. I did not do them in blocks, rather in rows and columns.

@MOC221_ If you are on 04b41 (which i think you are) and you are interested in trying this, i can send you the file (im on premium SFOB)

And for the guys who cant stand waiting for VF to open on windows 10, just do what i do, Never Close It.

 

I found it just by multiplying them all 120% across the board that each gear had vastly different values. For instance 0 to 100 in first gear had lower values than 0 to 100 in second gear which had lower values than 0 to 100 in third gear. This meant the truck went: Vroom, in first. Vroooom, in second. And Vroooooom in third. Like you were pressing the gas harder with each gear, but really your foot never moved. I didn't care for that. So I upped 2nd gear by, lests say, *125. I then copied all of those values and pasted them to 1st and third. That way if you hold your foot at half throttle, it goes through all 3 gears like you're pushing the gas half way for each gear. Does that make sense?

 

That's exactly what I'm talking about.
If you push the gas pedal halfway and hold it there, when the truck shifts through those gears it acts like you're giving it a different amount of throttle for each of those gears.
DUMB!
Unless you match those values for all three gears. Then when you press the gas halfway it accelerates through all three gears as if you're pressing the gas halfway. Realistically they could all be the same one through six as far as throttle limitations. I just found it very critical that the first three gears matched values, for a smooth acceleration.

 

Schnikes! I like your Primary Throttle edit. I was thinking about something like that, keeping the negative values and removing the crease.

Are you seeing any change in OBD minimum Throttle % when coasting?


On your Air Load Control maps. It looks like your values between the two Lambdas are pretty close. I am intrigued by @OVTune saying that his on the 04B04 Example were the same.


If think you are making me a bit antsy to play with the Primary Throttle again!

Thanks for the details!

 

That’s for clarification! I understand now. I’ll adjust them using the process you stated and see how it reacts. I appreciate the feedback!

 

When you open up those tables look at the top values. The ones that don't change. If those values are the same across the top make your input values the same across the bottom. I think fourth fifth and sixth have the same values as one another across the top so make sure you pick one of those gears, copy those values, and make the other two sets the same.

 

I did not see Matts file for the air as it was sent in an 04b04 example. I just did what he highlighted previously but made some slight smoothing adjustments.

I was able to get the throttle down to 14% again (which i think is the minimum) But i think i can actually get it lower than that (hense the stalling concerns)

My theory is this. Looking at the X and Y graphs you have 700 RPM, this is idle, 0 Throttle,

The next item is 1300 RPM (coincidently the point where DFCO lets loose)

Then i noticed that when i removed the negatives my throttle would not close beyond 18% (Except at idle)

So i increased the amount on negatives, putting -10.5 everywhere under 0 throttle. then i did some smoothing, paying close attention to the value at 1300 in relation to 700. The larger the change, the larger the difference. So i made them super close (within one degree) Im assuming the system automatically interpolates between values. Meaning that if you have a jump from 700 to 1300 of 10 then it will interpolate that (the jerk you get when DFCO stops)

So i made the jump from 1300 to 700 a mere 1.5 (a gentle slope if you will)

I have some more theories on this (and rev hang) but im gonna have to test that somewhere i wont stall or get in an accident (as i have no idea what will happen, and i dont know how to computer handles transition from running to idle)

Other than the fact that matt said Idle is not a seperate map (so it must be controlled through the throttle plate)

With that said, if you want to plug a -10.5 in for 700 @ 0 throttle, be my guest (im gonna try a more subtle approach)

EDIT: and when we can modify the x and y axis, ill be able to get rid of that 600 rpm jump between 700 and 1300

 

From my experience setting up the EFI and balancing TBs on my bikes, the idle air stop is around 3deg. It looks like it is barely cracked, yet the motors would idle at 1k. A single TB at 14deg for idle feels weird? In DFCO, stalling is not an issue. When testing some DFCO files, there was one or two that felt like the motor stumbled. I am guessing that was more about the injectors coming back on at a very low RPM more than throttle angle?

@OVTune asked to no publicly post the DFCO RPMs. I will toss those to you in a PM.


Yes. That big jump in the first column is quite large. Being able to expand the axes would be sweet!


Thanks again for the details!

 

So technically since I’ve already upped all 6 tables by 20% I could just copy the 2nd gear table and past it to 1st and 3rd?

 

that's what I ended up doing because second gear was in the middle of first and third as far as the overall values...

 

I gotcha, I understand now. Thanks for all the clarification!

 

here is the graph of a 30 min drive to work (i really need to try and capture in smaller intervals)

you can see where it never goes below 14 or so (i may be looking at the wrong place, but regardless, if 14 = 3 at least its consistent)

 

Holy shit man, kudos for the effort! My Airload maps are very similar to yours and that's about it lol..

I just modified the Primary Torque Map to try and see if I could get more consistent throttle response, concentrating first in the RPM range where most of my blips happen (top of that range I estimated to be about 3200). My map is still messy/chunky, so I won't post it yet lol.
One thing I learned real quick - removing or decreasing the negative values near the left side of that map (close to or at full lift) really messes with your engine braking. The truck drives and accelerates very smoothly and is great on the highway... it just doesn't slow down so good lolol

 

It might be time for an actual look at the TB! At rest, at idle, and such. I could be completely off base.

Your logging is great for seeing this.