I've had a Edge Evolution on my '06 since '07 with no problems at all. (running level 2) About 2 weeks ago I went to start to it up and it wouldn't turn over at all, and it said "check gauges" where the mileage would be. I reached down to where it was plugged in and actually accidentily unplugged it, well the truck started just fine, and ran normal. Yesterday I'm sitting at a red light and the truck just shuts off and it says "check gauges", I put the truck in park and it starts and runs fine the rest of the trip. So now I'm a little worried, this morning I went and plugged it back in and itr worked fine, along with the gauges. The check gauges error is something I got when I first got the truck, but that was because my truck was so new they didn't have a current HEX program for it yet. Since then I haven't downloaded anything for it, maybe thats all I need to do? Seeing if anyone could shed some light on it before I call Edge.

 

In addition to checking for updates, your problem could also be your battery. Have it load tested (acceptable voltage alone isn't enough).

 

And also make sure the electrical connections on the EVO and DTC port are clean. Sometimes when you run a piggyback programmer like the Edge connection problems can occur. When you reflash the PCM like the SCT or Super Chips does, there are no connection problems.