How do you know when a boost stick goes bad, it may be a coincidence but I had my truck detailed yesterday and when I picked it up as soon as I gave it any throttle I got a CEL. I also noticed that my boost on my edge would go from 0 to 30 and nothing in between. Usually when you are decelerating it will read about 4lbs and it would go straight to 0. I unplugged my edge thinking water might have got in there and blew out all connections and left them apart for a little while to make sure they were dry. I also took out the BS and then took it for a drive and all seems well.

Might try looking here.
http://www.dieselplace.com/forum/search.php?searchid=6848484

What code did you get, low boost code??? Yeah that sounds like a BS that took a dump. Mine did to, I thought it was the MAP sensor for a while. You may possibly have the first version of it. I picked up a new version of it and it seems to be good so far.