vF Tuner for the 3.5L Tacoma

So you went up 20% over the modified duty cycle settings in that post or over stock?

 

Over stock

I left phase duty 1 unchanged. All the rest +20%

 

Why did you deviate from this post? https://www.tacomaworld.com/posts/23326969 just curious

 

Because if you look at the stock compared to those numbers, its approx +20% on each. I like consistency.

 

OCD - i dig it

 

Also laziness.. lol i can just change the first digit

 

I just checked my battery it’s at 12.52volts
I up the duty to 96 and drive around a little and check again

 

These are all the tables i modify (stock values shown below) for AGM changes

If you ONLY modify the “base phase duty” your output is going to be lower than you may expect, or you’ll have to raise it higher to get the output you want.

If i set base phase duty to 94 and up the duty cycle +20 (max of 102.3) on duty 2/3/4/5/6/7/9, my output is at 14.5v. I’ve been running this since June 23 without issue.

 

??? so if you are running two agm batteries is there another location to alter the charging for battery number 2 ? Or just for a single battery. Sorry for the stupid quesitons. thanks for the education.

 

If you are running dual batteries, you typically run some kind of isolator / BMS / charging relay. It’s still the same output, its just managed and split between the two

 

So if you flash an update, and don't clear LV and AT, it's not all der-de-der... That's good to know. Thanks for the replies!

I'm still wanting to tweak 5th and sixth up, and don't want to start all over again with the learning process. Plan is to alleviate overdrive(s) from being used while towing. It's being tuned to hold onto 4th until 70mph before upshifting to 5th, and when accelerating while in 4th, it hangs on just a tad longer than factory ETC mode before downshifting into 3rd. My hope is to eliminate the gear hunting on the highway. I'm camping in a couple weeks. Excited to see if it works as well as I plan.

 

I’m on this charging at 14.5 (multimeter) as well.


Having a usb voltage plug in the spare charger hole reads 14.5 as well

 

How much of a difference are you guys getting from what vF Tuner logger states and the volt meter at the battery says? I'll have to check and see when I get home tonight what the numbers are with a volt meter. But currently if I run base phase duty at 94 I get around 14.25-14.40 max control module voltage and a battery voltage of around 14.6v. If I bump it up to 95 if get about 14.35-14.55 control module voltage and a battery voltage of around 14.72 give or take a few. This is all viewed via logger in vFTuner software..

I'm sure its over charging with the base phase at 95 so I changed it back to 94.

Just curious how off the logger is from the actual hard points at the battery for you guy/gals

 

Mine are the same last time i checked

 

I wanna play with the 4/5/6 shifting also because with my combo of gears and tires (4.88/34s) even at 70 6th will stay in an unlocked state for miles with the slightest of headwind at all. Our speedlimit here is 55 so if I'm doing anything below 60 I'm lucky if I can even get into 6th sometimes. The 0944 tune from awhile back was the best shifting tune for me but OV has said he doesn't plan on releasing it in VFT format so I'm on my own to try and figure that shifting combo out. Gonna wait till the next update though to make sure the gearing numbers are accurate. Afraid to adjust shift numbers if the whole baseline of gearing numbers could possibly be just a little bit off. looking forward to friyay

 

Your readings were to same as mine or the voltage at the battery was the same as the control module voltage showed?

 

Same at the control module and multimeter at the battery. 14.4-5v

 

The logger isn't wrong, it's just not measuring the voltage right at the terminals. It is reporting the voltage the ECU sees. There is likely to be 0.1-0.2 v discrepancy from the terminal to the pins in the ECU.

 

Let me know Ive been running your tune so far, and like it. Let me know if you make any tweaks. I wanna see what this tow tune is coming outt

 

Awesome, that's exactly what I was wondering!