usually when you get all these codes popping up its one of 2 things on these trucks
like kevin said its voltage issues causing the system to get incorrect 'expected' readings therefore it throws random codes for everything.
-check the battery AND charging system
-check the frame ground over on the side of the frame battery side, make sure its clean, not painted, sometimes they would assemble the trucks and the ground point would be painted over... DOH!
-check the egi relays in the relay box, those have been known to cause these kind of issues as well. If they are the black relays replace them, the new ones are green and do work alot better.

as for a manual, thats a big no no
sorry

hope this helps