I have a 2002 Taurus SE with the 3.0 SOHC vulcan engine. I am currently looking at buying a 2004 Taurus (I beleive SES) with the 3.0 DOHC Duratec engine. I am going to be swapping engines and am curious about something. When I go to switch the engines and trannies over, am I also going to have to switch the computer and harness as well? Just wondering if it will be a nessecity or not. I have a couple weeks till anything is final, just gathering some info..