Many of the circuits even have the same wire colors. It looks like my biggest issue is the OBD1 has a 8 volt supply for the cam, crank and vehicle speed sensors that the OBD2 doesn't have. The OBD2 just has 2, 5 volt supplies. Not sure how big of an issue that is going to be though. I might have to change those 3 sensors to the OBD2 style. I'll have to wait until I get the full wiring diagrams. I only have the PCM pin out charts at this point. At least I'll have an extra PCM if I smoke one. 
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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