In the diagnosis from a standstill :
Position egr engine at idle fluctuates between 25 and 30% if accellero 1-2%.
Valve an overboost closure 98% if I accelerate always 98%
If the blower vacuum act with the polmoncino the value valve overboosr get to 36% so I suppose that geometry and sensor work, if I check now in the error I get is error p2563 the defect in the ordinary
As far as the tubes controlled unonper a vacuum pump but do not lose checked also conducted intercooler