I would understand if the SVBL serves to limit the pressure or to set the maximum limit to get into the recovery unit.
With regard to the values in the map, these are not respected, why? you're above the curve, which I posted, EE866 and EE952.
the most low-need to get in closedloop operation, or the management with the map with the values of pressure from "chase".
the most high-need to get out of this operation and go to the openloop operation, or are used VGT maps that are disconnected from the pressure
and should serve to provide an effect an overboost.
so if you want to reduce the turbo at the highest loads, you have 2 solutions:
1. Reduce the openings of the vgt to the maximum loads
2. Raise the final part of the curves EE866 and EE952, the value to be put should be in mm3 of fuel
the breakpoints of these curves are in rpm, the curve represents the IQ utmost to stay in closed loop and then use lemappe pressure.