Price_Dog

I finally got around to driving my truck a little bit after getting the Edge w/Attitude installed last week. I noticed that the speedometer on the Attitude unit is no where near being correct. I pretty well sat at 130 mph the whole time I was driving the truck. As a matter of fact I think it said like 105 mph after I started the truck (before it left the garage). I didn't install the unit, and the instruction manual is about useless for trouble shooting, so before I call the company I was wondering if you all have ever seen this or might have any idea why this could be happening? Thanks!

Thomas

CrazyCooter

Did you set the tire diameter in the Attitude? I has to know what the tire size is to give an accurate speed.

Price_Dog

Yeah, the tire size is set . . . and they're only 285s, not much different than stock, so I wouldn't think that it would be reading 130 mph if I'm going 60 mph?

Thomas

cbrahs

I can't remember but does it have a setting for Kilometers/MPH? that might be the problem.

Price_Dog

I don't know if there's a switch for metric/us or not . . . but I still don't know if that would explain why it's reading a positive speed when the truck is sitting still. It read 104 mph (and I'm pretty sure it's on us) when I was BACKING out of the garage - I know because I had the alert set to go off at 100 mph, haha.

Thomas

Price_Dog

Anyone else? Any ideas?

swansong04

well , with mine i have 315 bfg t/a's and i punched in the recommended number and it was out a mile .. so what i did is used my hand held gps to calibrate it to be bang on .. and i just kept dialing up the number till i got it .. takes a bit of farting around but not a big deal .. mine is bang on now !!

GOOD LUCK

Gary