not much to do to help, unless you have any specific knowledge of the 6816...

the info from that thread does match a lot of what i have found to be true as well.... so it seems i'm at least on the right track.

i have the file i've been working on fully or at least close to fully disassembled.... good news is that there actually doesn't seem to be that much calibration to it.... bad news is that it means there is a WHOLE lot of algorithm to go through to try and understand the calibration. with no kind of reference to go off of(like the ALDL stream in GM OBD1 stuff), i really can't get much further than this.

i can upload the IDA and ASM files so far, but i don't know how much use they'll be to anybody.