Hi have taken the idle valve off and cleaned out with carb cleaner and this has cured the problem so big thanks to Clee and the Saint
Re my second question which is not how I remembered writing it so here it is again
Decided to take of the control panel and followed the instructions in the w/s manual, took out the the two ventilation grills ,removed steering wheel and removed upper and lower shells from steering .
Couldn’t find the screws F in the ventilation openings or the screws E under the instruments
There were two bolts roughly where the two screws E should have been and I did remove them but no movement of the control panel This to see that the connections to the turbo boost valves were good ( it still is not working)
Put back together OK
thanks