bziggy

Hello I have a 2001 dodge ram 3500 4X4. I have been having problems with it and now come to find it is the computer that controls the engine. I wanted to know if any one knows of a place or person that can refurbish my computer or if any one has one for sale. P.S I know it is the computer because I used a computer from a friend’s truck and it ran fine no problems for a few days. Put mine back in and back comes the problems a long list of them. Thank you