Calibration help with H&S and Lie-o-meter

[mm854]

just performed all work on 08 F-250 2 weeks ago. H&S tuner, cat\dpf delete and truck runs awesome. My lie-o-meter is way off saying I am getting 34 avg. mpg and I know this is wrong. How can I recalibrate the Lie-o-meter to the H&S tuner to get an accurate reading?

[AW794]

I dont know of any way. Mine says 28mpg all the time, i just deal with it and had calculate it when i fillup

[bioniccruiser]

AW794, how far off is it from your hand calc? pre-mods my L-O-M was only .5mpg off. I suspect it's over 2mpg now, but the thing is getting such good mileage, I haven't had to fill up since mods went in. still 1/2 tank after 3 weeks.

[Dim Sum]

My L-O-M is off too. I just learn not to look at it and use a pencil/notebook to find my mileage.

I don't think there is a good way to calibrate the meter.

[sce02]

Mine is consistently 10mpg off. Filled up today. L-O-M said 23mpg. Hand calculated 12.9mpg.

[bioniccruiser]

Originally Posted by sce02

Mine is consistently 10mpg off. Filled up today. L-O-M said 23mpg. Hand calculated 12.9mpg.

crap! I was thinking 2-4mpg. now I'm afraid to find out how far mine is off.

[kevinah]

mine appears to be off by 7mpg-no matter how I drive it. I've checked after 4 fills since removal. Hand calc. in this order- 13 mpg(testing and racing around), 18mpg(all highway), 15mpg(towing about 6000lbs) and 17mpg(city/hwy mix). Each time my gauge was 6 or 7 off.

[AW794]

Originally Posted by bioniccruiser

AW794, how far off is it from your hand calc? pre-mods my L-O-M was only .5mpg off. I suspect it's over 2mpg now, but the thing is getting such good mileage, I haven't had to fill up since mods went in. still 1/2 tank after 3 weeks.

Mine is typically 9-10mpg off as well.

[Profish00]

Are you telling me I don't get 23mpg?

[bioniccruiser]

Originally Posted by Profish00

Are you telling me I don't get 23mpg?

"don't mock me monkey..." (don't know if you've seen 'Grandma's Boy'. that was a quote from it. so no offense intended.)

if you are serious, I am disappointed too. I was hoping to baby it and get over 20, but I didn't want my bubble burst this soon. my old 7.3 was getting 17-19 empty and I was dreaming of a little better.