[SEE]

Might be worth re -installing the driver first and deleting the registry files since yours is part working and booting up. It may be a hardware fault or wire dropped - did the fault suddenly appear at the same time on all the components you mention?

They do come up on Ebay (there was one a few days ago - throttle only) and that is the only place I have seen them.

I have repaired two but the throttle unit is not very user friendly regards stripping down and replacement parts are not available anyway.