I've spent a good while searching and can't seem to find what I need. I've good a pretty good handle on what to keep and what to get rid of, but I am unsure if I need to keep pins 14,43 and 80 on the Green connector and pin 45 on the Blue connector.

Is pin B45 the same as "A/C request" as described in Pocket's guides? Can someone please look over the spreadsheet and double check that I am keeping the right wires.

I am keeping A/C, Cruise and it will be an auto.

http://www.lt1swap.com/2004vortec_pcm.htm

Pinouts changed with the new PCM. Get an ALLData account and build the harness like the trucks had them or repin the connectors to a more commonly used PCM like the 99-02 Fbody

I appreciate the reply. So if I re-pin to a 99-02 F-body I'm still a bit confused over which wires to keep? Do I still keep the pins in my first post and then just match them to the new PCM? Or doesn't it really matter as long as I have enough wires hooking to the pins I need on the new PCM? Color coding will be way off anyway with a F-Body PCM, right?

Colors are usually the same (few exceptions) just be double sure you label each wire as it's removed

This should help
http://www.lt1swap.com/2001_ls1_schematic.htm

Ok. That clear things up a bit. Just to make sure I got it, I need to keep pins 14,17,18 and 45 using this diagram http://www.lt1swap.com/pictures/18_ac_comp_controls.gif

Looking back at the truck pinouts and using the color coding I think I can figure it out from here. Thanks again.