Haven't got one yet, but do know a couple of people with those ECUs (that can't use them until they get diagrams too). I was hoping that since this forum had people from all around, that someone might even have the Mark II service manual or whatever. Even if it's in Kanji (Japanese), we would still be able to get it translated. Are you aware of any Mark II/Chaser/JZX81/JZX90 clubs?