i just ran the code via the jumper plug. it threw code 67 which is the cat converter. does anyone know if its just a bad cat or maybe a wire or something that has gone bad connecting to the cat. any ideas would be helpful thanks for lookin

 

If you don't have an exhaust leak, then the cat is generally bad when this code is thrown.

This generally happens because the engine tune ups were not routinely done and this caused engine misfiring.