I tried disconnecting the battery for 10 seconds and that did the trick too Chris. It won't restart so I do that, then it fires right up.
I'm not convinced a write entire of my stock file completely overwrote the 2.5bar os either, the fans do some strange things that they shouldn't do according to the settings in the tune, and the car won't enter dfco when it should. I think I should flash back to stock with GM TIS...lots of weird bugs that I can't explain going on.