engine code is 192A5.00, yes it is a 16v one
yes understand nox box and it's use.
sill unsure if actuator is getting a vac source on the move, going to t into vac line and go for a run and see what readings come back.
should actuator move on switching ignition on and then move to rest position on switching ignition off?
will look at astra as you suggest see if i can find anything.
peter