I have a MK 5 with air. Picked it up inoperable and been working to change that. New PID for the pre-melt, new solenoids, fittings and some air lines. While it now melts well and the carriage and drive are functional I am having a bear of a time with the timer wiring. It does not resemble the MK 8 wiring at all. Would some one have a wiring diagram for the MK5 ?