hi Paul,
i plugged a PFC into my car last night and has some funny symptoms with my ATTESSA
CAR
R33 GTS4 RB25DET S1
PFC was from a S1 gtst my thoughts we it shouldnt matter that the car it came from doesnt have AWD as the main ECU doesnt handle that stuff but i had my AWD binding up on me on a few occasions
the only other thing that has been done different is i put my front shaft back in after it being out for about 6 months so could it be a coincident that the same night i put the shaft and pfc in i get weird binding
also i did drive it 45mins from my tuner to my house with no binding on standard ecu