new scangauge 2 came in the mail
 

Hey, so I bit the bullet and cut my grocery bill to afford a scangauge (college will do that).

Got to look over the manual real quick the other night, look forward to setting some of the stuff up. Biggest question I have is-do I have to run it low before I fill up for the first calibration or does it matter? I know the second calibration is done at 1/4 tank but it doesn't say when the first is.

Any tips or tricks on getting started are appreciated, this thing is what more capable than I thought it'd be.


Cheers.

Zach

well today i plugged it in just to try it out, set the gauges to mpg, average mpg, rpms and mph. I definitely know it isn't reading the mpg right, said i averaged 22.5 on a 30 minute highway drive tonight (i drive a 2004 civic lx 5 speed and generally average 38-42 a tank based on my fill up/miles driven calculation). Hoping to read up on it and get it calibrated and such tomorrow. :D

The calibration of the tank will take several fillups of the tank, anyway. It is also important to set the Cutoff at ~4 above the zero throttle position - look at the TPS when the engine is idling and warmed up, and then set the Cutoff to about 4 higher.

1) About those low MPG numbers, did you enter your engine size?

2) Set your "Fuel Type" to "Hybrid" if you ever stop the engine to save fuel (either simply turning off at long lights, or if you ever kill the engine when coasting to a stop.

And congrats - it's a fun toy that will pay for itself many times over.

Good info for the cutoff setting. Pretty sure my tps reads like 10 at warm idle though. Going to double check it tomorrow and really figure this out. Is this how it reads "9999" when in DFCO?? Because mine never reads that and, in fact, reads lower than when I coast in neutral.

I switched mine and it works great! Keeps much better track of mileage because it can factor in EOC miles, great tip!!

ok well i set the engine size and the other setting 4 above the idle reading (which was 9-so i set it to 13). Now it seems like i'm getting much more realistic readings. I'll have to turn it to hybrid mode as i did coast with it off a few times/turned it off at lights and noticed my mileage average dropped slightly. Mounting it is the next challenge along with proper fuel tank calibration, i kind of just held it in my steering hand hah, i didn't want to take my eyes off it. Thanks for the advice!

The Speed setting also affects the MPG; which is actually the odometer. There are three ways to calibrate this: measure a route in Google Maps and drive it with Trip B in your car set to measure the distance, and adjust the distance accordingly. You can use a GPS unit, if you have one, or you can drive on a highway that has measured miles (and 1/10ths) and reset the Trip B just as you pass a mile marker, and then drive far enough to get an accurate estimate of the odometer accuracy.

I'm peddling our goods here, but I do have one and like it. We sell a SG mount in the store here:

http://ecomodder.com/forum/sgmount01.jpg

I'm having a hard time finding how to adjust the distance, would it be in trips somewhere?

More > Setup > Speed

Then use the upper left or right button (I think) to change the % correction value.

ScanGaugeE User Manuals : Linear Logic

So based on the real distance traveled and the scangauge recorded distance traveled I have to calibrate it based on the difference percentage?

Yup.

EG: let's say you drive a 11 mile verified route (checked with GPS, or one of the other methods Niel mentioned). If the SG says you went 10 miles, you now have to change the SG's "Speed" value to match reality.

You need to increase it, so you know you're dealing with a positive calibration.

There's a 1 mile difference between reality and the SG.

1 actual mile / 10 indicated miles = 10% difference

So you'd enter +10% as the Speed correction.

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I had to adjust the Speed value in my "Winter beater" '07 Civic because I increased the tire size (to increase gearing). That caused the car's speedometer/odo to read lower than actual, so now I'm running a +6% adjustment in the SG.

got it, i'll route my way to the gym this evening with google maps and check the distance traveled in comparison after i get there. This thing is pretty cool for the money.

After each tank fillup, do not adjust the % to the correct value (amount of fuel pumped) right away.

Basically you would calibrate the fuel value by only 50% of the variation. This will make the calibration process quicker since the scangauge will tend to overshoot less around the set point or the desired, calibrated value.

Also, try to use the same gas pump at each fillup for more accuracy.

Alright so I tracked some distance with a app on my phone that measured it with my gos (assuming it's accurate) it said I went 8.388 miles and the sg read it as 8.5. That seems pretty accurate. Any calibration needed? I still haven't gotten to fill the tank yet, hopefully doing that this weekend.