So the other day I hooked up a friends Edge Tuner to my 03 F250 6.0. While the tuner was doing its thing it read mismatched and now my truck wont start or turn over at all. His tuner had the option for my truck that why we tried it. His truck is an 2005 F250 6.0. I think I need to reflash the PCM back to stock. Has anyone ever encountered this? I don't want to take it to the dealership because they want a $180 diagnostic fee. Can I buy a used PCM and plug and play?