Any suggestions on where I can go from here? I just bought an 03 EXT that needs a decent amount of work done. It's solid.. for the most part.. but previous owners have maintained it by only fixing it when it won't drive anymore, and use the cheapest parts available to make it run again and I swear everytime I get in the truck I discover something new. Currently it's a Reduced Engine Power message.
Just had to put a new computer in it and discovered oil has creeped its way into one of the connectors and the insulation on 3 or 4 wires has disappeared, and it happened right at the pcm connector, I dont think there's any insulation from the pin itself all the way to about 3 inches away from the connector and into the harness. That's why I'm needing a wire diagram or PCM connector pinout. I know I have to fix it regardless but still good to know if that could contribute to other problems I'm having so I can make sure I'm chasing the right rabbits... gremlins, rather.
If only GM didn't shut down that fbdylvr.thruhere.net site.. that was an amazing resource for keeping my last car going. I've heard that they don't even have SI anymore tho.