Also interested on why the butterfly valve cannot be moved, mine has a slightly lumpy idle when warmed up, the rev dial moves ever so slightly and you can feel a bit of vibration through the car.
I think i'm going to clean the throttle body and MAF to see if that resolves it, if not new spark plugs.
Surely a throttle reset would resolve any issues after cleaning?
EDIT: Looking into it I can see a lot of people having problems when cleaning the TB.
Did you resolve your idle longsh07?