Chris, I *think* our EGR set up is more complicated than the EU system, courtesy of our pollution regs. IIRC, our system is controlled by the computer, whereas their system is more mechanical in nature (I think it's vacuum controlled, but can't recall for sure). I might be wrong, it's been a while since I looked.
Anyway, knowing that our ECU differs from the EU ECU is enough reason to give me pause. Did you find out enough in your research to conclude that we should be able to use their set up over here and not get codes?