OBD1 PCM interchange/compatibility, 5.2 vs 5.9

Thanks for finding that, some really useful info there. Searches are funny, I've been looking into this all week (before I posted about it), and ended up on R/C central several times but never came across this one. Looks like he's doing an OBD2 swap, leads me to believe if it works for that, it should work for the end-of-the-run OBD1 I've got. One question: do you think he's refering to a body ground, or the "sensor ground" identified in the '92 pinout? Just to make things more confusing, the '95 pinout calls it a "sensor return"... what fun.