I have a 94 PCM that obviouslly has some sort of programming in it. I was under the impression, when I bought it, that it was a stock OBD-1 PCM. Well, I need the stock program. What would be the cheapest, easiest way to get it back to stock?

 

Easiest is to have it re-flashed at teh dealer.
cheapest is to have someone flash it with tunercat or LT1 edit, if they have a 94 bin for your engine/tranny combo.