I'll have a go and hack anything if I think it's worth it :-)
The problem with ECU hacking is just the time it would take.
Any setting you want to make involves replacing an eprom - yuk
and so not practical.
It is probably easier to replace the ECU with an aftermarket
ECU that you can configure on the fly via a serial or usb port
from within the cabin.
The other option, is ECU piggybacking. Use an arduino to
read what the ECU is doing and then make decisions that
override whatever the ECU said.
