I have a hypertech programmer but I am not sure of how to use this one. I have used Diablo and they are a little bit more user friendly, I'm trying to get a little more fuel mileage out of it and a little more power. Can someone please tell me the best way to do this?

 

You don't have the instruction manual? If you have the Power Programmer, here is the .pdf version of the manual. The manuals for the other models are also available at their website, I'm pretty sure.

 

You basically plug it in and follow the onscreen instructions...