I re-tested the A.F.M. and it tested good. The resistance changed in waves, which is what threw me off at first, but was well within specs. I then tested the throttle position sensor, and that tested bad. I replaced the T.P.S. and started it up. It ran perfect for about a minute, then it went back to idling and running like crap. I re-tested the new sensor and it was bad so now I guess I have narrowed it down to a short in the wiring somewhere. So the hunt begins!