When I installed the splitport 3.8L N/A (from a 2000 mustang) into my 94 LX, I had to convert to DPFE from PFE. As inconsequential as it may seem, I found out that just reversing the two hoses that run from the EGR tube to the DPFE made the car run horribly. It stumbled, almost to the verge of popping out of the exhaust, and had no power. I couldn't believe that little sensor could cause so much trouble, but believe me, it can.
-Rod