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While the only way to know for sure how the valves behave when PSE is engaged is a GoPro it should be easy to have someone here confirm if the valves should open at idle when turning PSE on?
With non-PSE Carrera S programing, the valves will be open until 5mph from a stop. If you go over 5mph, they will close and not open again until you stop. They will then open again at 3300RPM under a partial load. From what I understand, PSE switch opens the valves all the time, but a camera would certainly validate this.