Doesnt the edge juice attitude let you change tire size and erase codes?

 

On the 06 and newer yes but not sure about the 05 and earlier units.

 

Mine does not. I'm not sure if Edge can reflash the unit though to add that feature

 

Unless things have changed considerably then the Juice/Attitude does not actually have the ability to change the ECM values related to tire size(ABS "Pinion Factor" up to 06). It allows you to enter a tire circumference that will display the correct mph on the Attitude speed display. It does not correct the OD on the cluster or at least it did not have that ability a year or so back.

Changing actual ECM values usually will require a downloader with that function or DRBII/StarScan tool.

 

Mines an 05' it doesn't let you change the speedometer reading but it does change the tire size for a read out on the screen of the display.

 

what about reading and erasing codes?

 

Nope. At least not on the 04.5s.