vF Tuning for Manual Transmission 3rd Gens

This makes me think we are at about the end of what we can do with the tables that have been uncovered. Hopefully I'm wrong though!

 

i finally modified & flashed my SFOB 2.0 93oct dump tube file thanks to tonered.

- i removed limits in first 2hi & 4hi. wow 1st was always a bit of a handful but there is much more anger there now. that has allowed me to be more immediate and aggressive with my spin up to release into 2nd. in other words, more performance w/o needing to run it up to higher rpm. i can get more out of it by spinning up the flywheel quicker, so i can release into 2nd sooner and with more power in hand. win!

- also smoothed 800-2000rpm on the 4 airload tables as Mat had suggested and some here, including tonered, verified has a noticeable effect. i noticed that in first gear the peaky behavior is almost gone and the power is now filled out. before i would punch the throttle letting it out into first and then immediately drop back on the throttle to compensate for the peak, otherwise it would be a rough delivery. now it is filled out and gives more power at less throttle and without the apparent peak. more smooth and more power there. win!

that's all i did. what's next?!

 

So i went -12 all the way down the primary table and tried again. Same result, sluggish throttle response.

I also ran a test

I shifted out of gear without using the clutch. Still rev hangs. Verified in csv log. Throttle goes from 20 to 21 and sits there for a moment before running down to 17.

It appears that we need more maps in vf tuner.

Also no change to dfco. I'll stick to pushing the clutch in at 1500.

I'm going to load my other file with tonys air table and see how it compares.

For now on it appears to be a sit and wait thing

 

I did the same + AGM edits. This truck is night and day different! Running B14 SFOB 2.0 93 oct here as well... just without dump tubes

 

The Clutch hang is something i really want to get rid of... drives me NUTS

 

does anyone have the info of how to permanently clear a CEL if it came from changing the front cats? i can't find what Mat had mentioned. is it the Fault 0420 or 0430 bytes?

no CEL here but now that i'm tweaking the tune and getting more out of it, i may install my catted dumps before my tuned Y is done. i just want to be able to clear it if it comes up.

 

That is completely fucked up, but on target with respect to the base tune that Toyota gave us.

Great work though!


Before they fixed the road near my house, we had a half mile downhill backup, where it was mainly doing a slow crawl in 1st gear. On Stock and 1.05, the throttle in coast / DFCO was completely unpredictable. Sometimes, it would go into DFCO, and sometimes, it would hang and never slow. I did find that tapping the brake enough to trigger the brake light would at least get DFCO to kick in.

I could experiment with dropping off the throttle high up or below the old DFCO Cut In at 1,400rpm and get different results. Not to mention the unpredictable nature of the injectors turning back on and shooting me forward.

2.0 is a lot better, but clearly, there is still fucked up logic in the throttle control.


Yes. As you increase speed, throttle and fuel flow (!) is increased when in DFCO. Makes zero sense.


I cannot imagine how this would be good for efficiency or emissions. I know there is some rationale for Rev Hangs, but even then, what folks do to avoid Rev Hang has to be work than the original problem.


Thanks again for doing this and confirming!

 

That is what I am thinking. Maybe someday, @OVTune can maybe give us one more throttle patch. I don't know if that is possible without a big rewrite of the WTF Toyota base code.

Nice! I'm glad that you are enjoying it.

You could test a file with my full Air Load Control edits? There is not much more change, just killing all visible creases. @92ehatch has been doing great work with the Primary Throttle Torque and 1st Gear maps. I plan to jump on those after this first tank of 87.

Otherwise, the hunt is on to kill the high DFCO Cut In in 1st Gear and Rev Hang.

Just curious, did you use @92ehatch , mine, your own, or someone else's edits?

Not yet. That is supposed to happen with the 2.0 AT Final release. It will be a tune build switch in vF.

 

I did it myself based off what OVTune talked about in his smoothing post and the intel i gathered from you. I only smoothed the area he mentioned, and i only did the CTRL + I once, not many times.

 

800-2000 range exactly?

 

Yessir - and only one round of smoothing.
I'm not sure if that does anything to be honest - i felt more of a bump from the throttle limits

 

same here. it did definitely show a change for me. it's somewhat subtle but clear nonetheless.

 

Thanks!

When I did the area noted by @OVTune in one go, I was a bit unhappy with the bump that it created. Then, when I did it in small shingles, I got too excited and did the rest of the map. Hahaha!

 

The smoothness has stuck with two fill ups after the flash including an octane change. Pretty amazing. A bit less power on 87, but nothing major, esp in normal driving.

Yeah, it is a small change, but felt and appreciated on top of the 2.0 goodness.


It still makes me laugh thinking back to the surprise when the 2.0 work was first posted. I couldn't imagine how the basics of 1.05 could be improved, esp considering the Stock garbage. How wrong I was!

 

Did you by chance try this tune posted as a test tune by Matt back in July? While not perfect, I thought it helped.

 

Im really bummed out about this. Just when i was about to pull the trigger on the OV tune, they went away from me. Now I’m very hesitant to purchase the vf tune as i have no knowledge or experience on tuning, I’m afraid I’d f something up. Curious to know if anyone in the Mass/NH area is comfortable enough with it or if they could help. I’d be willing to compensate them for their time of course.

 

it's just as simple as you believed before. the process has changed a bit, but the pre-made full-on tunes are available to flash right out of the box. you're good!

 

I believe it was said that we do not yet have access to the maps to make those changes and @OVTune said that the results were inconclusive. Folks who tried it and did not send feedback, one way or the other, certainly should.

@lapoltba is near there and should be able to help you out.

That said, a vF License with the Tune Pack is similar to the old Flash Kit, but better. You can run the Full 2.0 MT tunes or edit them as is being discussed here. Some of the notable edits are quite easy to do. And, you have to opportunity to just paste in the edits that folks like from attached spreadsheets.

 

I've been making all my adjustments to that test tune. I think it's my favorite thus far, but we all know how subjective these things are

Edit: I believe that you are right about access to tables though. vF Tuner doesn't allow you to play with what Matt did as part of the test, I just like what he did there to be in my edits

 

Nice!

Were you able to get some of the torque under 3,500? That was the hardest thing for me to readjust to when trying out 04B14 Stock. That TSB flash really felt like 1.05 Base except for the missing torque under 3,500.