The problem i'm having is that my edge doesn't seem to change my speedo i've tried different methods , i've tried increasing & decreasing the tire size for 3% & 5% and higher and still each time i'm 5mph off doing 60 gps says 65-66 what could be wrong even my shift points are off so for now i'm running stock till i figure this out i'm running 305/65-18 at 40 psi also can i just change tire size and run stock or do i have to be on level 1,2,3 just curious

 

Are you sure your gears are set correctly?

 

No, you can not run level 0 and change any setting. You have to at least be on level 1.

 

First of all, you've got close to a 10% error in speed, so you'd need to reduce the tire size displayed by almost 10%, if the GPS says you're moving faster than your speedo says (the GPS is correct - your speedo isn't).

Here's the number I'd try: 2594 mm. This is pretty close to your unloaded tire circumference minus 3% for squish. Make sure your Gear Ratio is correct too. The values that are loaded in the Custom Options menu for TS and GR are just "placeholder" values that may or may not be correct.

You DO need to be in an advanced Level (1, 2, or 3) to set these values.

If your Tire Size and Gear Ratio are stock, you could just skip the Custom Options menu entirely, and everything would be correct.

- Jack

 

YES SIR that i did change cause default is 3:73 and i have 3:55

 

Ok i'm gonna try again today i've done the roll out also so gonna try that also once i get this tuned in is my speedo gonna be correct at all mph or will this differ at different speeds thanks

 

If you monitor the speed on the Edge, it's possible, with the correct tire size, to get it to read correctly at all speeds.

The dashboard speedo however, because it is a mechanical display of a digital signal from the PCM, has about a 3% error due to springs and other components. It will tend to read about 1 mph fast in the 40 mph range and about 2 mph fast in the 70 mph range.

- Jack

 

OK guys something is not working i've changed tire size about 10 times today the closest i got was 7 mph off from gps i even tried for the hell of it changing from 3:55 to 3:73 still off by 7 could there possibly be something wrong with my edge i would have thought i'd see some changes i was increasing slowly then drastically still no change any other ideas also just updated last week maybe it's time i just convert to gryphon

 

What do you see if you select a tune, then open the Custom Options menu, and then immediately Load Previous Settings? Are the Tire Size (TS) and Gear Ratio (GR) very close to the values you set previously? (Note: there will be a slight change in the TS due to an internal conversion from TS to revs/mile and back again to TS, but the two numbers should be fairly close).

If you are NOT getting these values back, you're not "saving" them. Make sure you hit [Enter] and not [Menu] once you set a value you want and then, when all settings are in, scroll to "Done" and hit [Enter]. You should see the Edge go through all the programming steps and it should take about 3 minutes to complete.

Let me know exactly what this does, please. Does it work like I say? If not, you DO need to talk to Edge.

- Jack