I posted this on another board but I'll repeat it here because this is my regular board and because I'm feeling quite chuffed

I reckon so. I've been having a good look inside mine. I pulled the EPROM and after a good many hours I've been able to disassemble the binary image. I still need to work out which bit of code does what. I need to put back all the components that I took off to trace through the circuitry and then fire it up and do some monitoring on the bus. What I have done so far proves that it can be reprogrammed. I'm pretty sure that I have identified the fuel maps. I've not found the ignition maps though, it could be a problem if they are inside one of the custom chips.
Not very interesting but here is the (rather rough) source code
http://www.rhinoman.org/ee88.zip This looks to be one of the fuel maps:

Most likely one for cold and one for hot. The first is a little richer so most likely for cold running. The fuelling on the second map drops off dramatically at the top end which I'm guessing is fuel cut to prevent over revving. Of course I could be wrong, lol.
The 16V ECU is much more difficult, it doesn't have the external EPROM and the code is hidden inside the processor which can't be reprogrammed. It would need a conversion to a different processor and all new code.
Edit: The two pics I originally posted were of the same map!