For anyone 'looking' at OBDII LT1 or LS1 Edit files.
The OBDII files are all scrambled. They are encrypted and blended with a key of some sort. So a .LT1 or .LS1 file will probably be of no use here.
I have posted two files to my web site - at http://www.akmcables.com/Obd2-t.bin and http://www.akmcables.com/Obd2-e.bin - these are T-side and E-side binary images of the chips in the LT1 PCM. I'd bet that some address lines are swapped around in there (they did it in the OBDI PCM), but I honestly haven't looked at them.
FWIW.
Andrew