Thanx for the information Akfishinguy wish we had a ford dealership here in Togiak Alaska. but the nearest one is in Anchorage, can't afford the freight to send the truck.
Out here, we just pull code and start buying parts. I've gotten a great deal of information on this site, which has made me more informed on the EFI system. I grew up in the 60s when it was more simplier, well not really fuel, air and fire. I bought the truck from a family here that drove it; but not very much and not hard with few problems. few weeks after I really drove it around, this problem began, I order an 02 sencor from anchorage, I already changed the MAP and what ever one that on the fire wall. Everything but that 02