Sputtering when warmed up

The truck runs fine when running cold but when it warms up it starts sputtering like it wants to stall when braking for a red light or even slowing down it sputters. The check engine light came on and the codes were for both the cam shaft position timing sensors both bank 1 and 2 being over retarded. Replaced both of them but the code popped up again and still having the same issues. Was hoping to fix it myself but I am running out of patients. I have heard multiple things that it could be but I just do not know