First pull filter knock all the honey comb out, reinstall filter, Electrical unplug differential sensors, unplug burner, unplug both plugs on fuel shut off . You will need to run keyed hot to the two wire plug on fuel shut off, The 3 wire plug is not used. Run a new fuel return line from directly from engine to fuel tank, plug old fuel return lines that went to burner. You will need to purchase a 4' push pull throttle cable, 2 ends and 2 clamps for cable. You will also have to make bracket under dash and near throttle control on engine to secure cable clamps. Dash throttle slot will have to be elongated and throttle stop pin removed to allow full throttle. With these modifications you will have check eng. Light and two dpf lights all the time.