I was looking into this a while back, and then... well... got injured, got married, moved, still doing hours of PT every day... excuses excuses.
Anyway:
http://www.romraider.com/forum/viewt...hp?f=25&t=8024
Most 32-bit ROMs already have two sets of tables for fuel and spark and boost, and a map switch ratio (cruise / non-cruise). It should be straightforward to run an ethanol sensor into an unused TGV sensor input, scale it like any other sensor, and use it to modify the injector scaling and replace the existing map switch ratio.
Someone needs to tackle this project. I thought it was gonna be me, but now I'm not so sure. If anyone out there is handy with software and wants to do this...
http://www.romraider.com/forum/viewt...hp?f=25&t=6303
http://www.romraider.com/forum/viewt...hp?f=25&t=7680