pscan appears to work with all of the Engine ECUs except for the Honda ones.
The ones that I have identified:-
T16: MEMS1.6, tested and works (needs 3 pin cable)
KV6 2.5: MEMS2J, tested and works
T-series non turbo: MEMS1.9 tested and works
I believe that the older 4 cylinder cars are using MEMS1.3 or MEMS1.6 and they will almost certainly work. I tried a Montego ECU and that worked and they look similar.
Honda ECUs are not going to work (yet). I think I have a Honda ECU from a 620 but I haven't had a chance to try it out.