First off.. yes I searched.

Ok here is the story. Took the SVT Tour into the shop to have the DMD put on and it was swapped out fine and I can tell the difference with it over the stock. Problem is now I have a CEL light flashing

(misfire) and this was not the case before I brought it there. Sure it could be a concidence.. but I dont think it is.
Has anyone had a CEL light thrown after they did the DMD?
Any thoughts to as what could cause the CEL light to flash? The wires and plugs look to be fine.
1999 SVT Contour - almost at 30k
Thank you in advance.