I have an 05 Screw FX4 with a pretty crappy rough idle. I have heard that the build dates later in 05 might have the new and inproved PCD flash. If there a way to find out which one I have without going to the dealer?

I plan of getting the help from Mr Troyer and the Xcal when I get the funds, but until then I would like to know if the idle can be fixed.

Thanks!

Dave