I have decided to approach this idle problem a different way. Instead of telling what has been done, lets talk about what has not been done. Injectors are stock 19#originals. Fuel pump is stock original. EGR is four years old.Converters have FORD stamp on them so must assume there original. Original ignition system. All head and intake gaskets original . Mass air meter ,cold pipe and throttle body four year old . Car ran lean for about a year before idle problem kick in then I turn back timing to stock. Lean problem 99% go away but idle got WORSE. Thats IT!! Dont honestly know were or who to turn to. Cant take it to Ford and let them "play" for another week at $400 a clip. ???????????????????????????????????