I changed from a 2001 O.S. to the 2002 model 15186006 O.S. and now I cant get my insight cts to work, when it powers up it tells me that a pid is not supported then it shuts down. I dont know where I went wrong, I did load a efilive tune from off of dieselplace.com in the tune library. Maybe that has something to do with it, or is it possible that I didnt do a entire reflash and thats causing it? I really want to stay with the 6006 cal and not go back to the 2001 O.S. because I had rail pressure faults with the original cal. I also want my cts to work as well, is there any reason why my 2001 with the 2002 cal would cause the cts to stop working? Im new to efi live so im trying to learn all I can, thanks