well, i can tell you at a glance that it's a calibration bin of some kind, there are definitely some 2d and 3d tables there..

for starters, there's a 64 byte 2d table at 0x03BE that has curvature and resolution that i'd be used to seeing for a MAF/VAF calibration (but it could be anything of course), if i simply wanted to add some fuel i might take an experimental stab at adding a percentage to a range of that table to see what happens

thing is i glanced at some potential 3d tables vs some normal-looking motronic ECMs and yours isn't even close, really.

i think to make any real progress, you'd need to find the program ROM, which is on another chip, and disassemble it, which is a monumental undertaking