Ultragauge Calibration settings

Curious to know everybody's MPG and distance settings for the Ultragauge. Please state tire size.

I am having a hard time getting mine dead on.

 

Hmm I didn't realize you could adjust the ultra gauge for tire size. I'll have to look into that.

 

I don't have markers around my place or on my normal travel routes. how accurate are they anyways?
still running stock on 265-70-16 so I don't think its off. I do notice my MPH doesn't match the dash

 

I had to calibrate my mileage by 1.22 miles. (For every one mile on the odometer my 'actual travel' is 1.22 miles. I went from a stock tires 26.85" to 33".

From UG user manual, this is how you calibrate.

 

I'm going to try to use my GPS. Where I'm at we don't have many straight roads. Another question. In the setup mode what did you put as the engine displacement. 4.0 or 3.95 like it says in the manual?

 

I can't find anywhere in the manual that says 3.95. However, I searched for our engine (1GR-FE) and found some stuff that said 3.956......... I have it set to 4.0 now, but I might change it......

 

I don't think there is a place in UG to adjust your tire size. Only two things that can be adjusted are Distance and MPG. I can't believe that over 100+ people just bought this thing and yet very few responses on the settings. Maybe people haven't had enough time to play with it. I don't have any mile markers near me either so it's hard to tell what to set the distance for. My speedometer is about 1-1.5 MPH faster than the UG MPH. I think the UG is correct (because it is dead on with my GPS). I'm still not happy with the MPG setting though (I wonder if the truck uses more gas during engine starts and stops) and if so, does UG account for that?

 

The distance calibration is how you adjust for tire size. I'm going to adjust my engine displacement, and reset everything back and see how that is. I tried using my wife's running gps which tracks by the foot, and my distance calibration was just above 1, like 1.07. Once I get this distance thing down I'll do the fuel calibration. My DTE is way off.

 

I have a stock sport with 265-70-16 and my cal conversion was like .94. It didnt make that much sense to me. I plotted a course and measured the distance using google maps. probably not the most accurate way. Im curious as to what someone else with the same tire size gets, please chime in.

I do notice that my speedo is off by a couple of mphs so i assume that the odomerter is off too? Is it right to think that since my tires are bigger then the stock tacoma tires, that im actually doing more miles then the ecm is calculating? and thus my conversion factor for the UG should be greater then 1?

 

Page 405 under ENGINE/displacement
1GR-FE engine 3956 cm3 (cubic centimeters)
That is 3.956L (Liters)
Also, I think that the calibration for the distance traveled is actually a tire calibration.
AND I JUST RECEIVED MY REBATE!!!!!!!

 

I agree that the distance traveled calibration is for tire size, but it isn't called that, that's why I said "there is no place to adjust "tire size"".

My manual, page 405, talks about fuse locations. Am doing more investigating to find the true engine size.

My tire size is 265/65/R17. I want to look at the MPG and distance cal settings but it won't let me. DTE is waayyy off, but I think the spped on UG is correct, as it matches up with a GPS. Not sure whats going on.

 

My set up is 265/75/16 (8 ply tires)

18.9 city without tonneau

with tonneau cover on hwy mpg was 20.5

 

What are your calibration settings?

 

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It's like that for most production street vehicles. They intentionally calibrate MPH to read 2-3 MPH faster than you are actually going but RPM is usually pretty close to actual.

According to the manual engine size is not critical if you have a MAF. Accurate engine size is more critical for vehicles that run MAP sensors.

 

I just calibrated my stock tires (265/70/16) on a 10 mile route. When calibrated, the bottom figure on the CALIBRATION PAGE was 1.054. I used my hand held GPS and it wound up pretty close.Not perfect but close. I tried it three times on the same route. Each was a little different. The difference is about 50ft +/-. I hope this helps.

 

i haven't had time for any calibration yet, but i know the MPH are off just a bit. when the dash says 80 it's reading 76.2. got to get that fixed. but pretty impressed with my average gas miles of 19.2 with combination of hwy and city today. it does make you watch your driving and the gas

 

My Ultra-gauge reads slower as far as MPH. I have 215/70-15 factory Dunlop tires. I think the Ultra-gauge is more correct than the speedometer in the dash though. The speedometer is probably about 3-5 MPH higher than actual speed.

MPGs are very close to what I've been calculating every fill up. My average back and forth to work is pretty close. I love looking at the instantaneous MPG while driving, but that will get me in a wreck if I'm not careful.

I don't have mine mounted yet. I just got it. I'm debating where to put it. I plan on taking it out and using it in other vehicles sometimes, so nothing too permanent.

 

Calibrated mine this weekend, here are few things I noticed (maybe someone can help me make some sense of it). BTW, I have 265/70/17 Revos.

- Out of the box, MPH on the UG and on my speedo were not consistent, however mileage on the ODO and UG were.

- Went through the calibration process over about a 100 mile trip using GPS, GPS showed I traveled farther than the ODO on the truck displayed. Used these numbers to calibrate, came to something like 1.033 if I recall (don't quote me on this)?

- After I calibrated, MPH on the speedo and UG were consistent. Just looked this morning, UG says 165 miles traveled, odo said something like 160.2. MPG seems accurate, haven't calculated it yet. I will when I fill the tank though. Haven't calibrated it yet for fuel consumption either.

I'd assume with the slightly larger tires, the speedo might be correct now on the Tacoma (since it was slightly fast with stock tires). What about the difference in miles on the ODO vs UG/GPS?

 

^^there is a disclaimer in the calibration of the UG manual that says not to use the ODO to calibrate the UG since they get the information from the same sensor, its pointless.