Windstar Failure Code 99 Autom 0741

Greetings to all and thanks for your attention I have fault code 0741 in Windstar 99 engine 3.8 Automatic box says Torque Converter Clutch stock off and change converter twice and sensor and the FLL is still?
Hopefully someone has an idea of ​​the origin of the fault does not present any failure of functioning only stands the focus of the box and gives the marked code thanks