When I thought my ECU was toast I sent it out to ecurepairnow.com. I spoke with them on the phone about it before hand and they were confident they could find the issue if there was one. It took a while to get it shipped there and back because I was cheap with the shipping and sent it ground both ways but they tested the hell out of my ECU and didn't find anything wrong. It was money well spent. Nothing was wrong with the ECU and I eventually found the source of my problems elsewhere. These guys are honest and good at what they do. Might want to ship the ECU out while you are waiting for Ford to come back with some new info. You need a 4.5 or 5.5mm socket to get the ECU out... can't remember which one exactly.