Okay, I have the new IAC in, and I can't for the life of me figure out why it's running in REVERSE.. (ex., opening instead of closing with the KOEO diagnostics set up). I had to replace the original connector with one from a different car, I don't remember whether it was an F-body or not, and I am not sure if I have the wiring correct...

Could someone help me with a pinout diagram? Thanks in advance...

BTW: yes, maybe one of these days I'll get my hands on a GM service manual.

 

Try this:

 

Thanks. That's just what I was looking for.