The Performance Products catalog has a nice description of the probably things wrong given certain symptoms.... and they allow the ' trial' installation of the computer .... and if that does not cure your problem you can return it.... in good condition of course... mine works so I don't remember exactly what they said.... everyone should have that catalog because it has good exploded line drawings of the engine and stuff.. with the proper names.... nice to have for phrasing questions here...
I don't know if Phil can do the same trial loan on the computer...