Hi all
MY11 SD4 XS Auto

I recently replaced the small (Approx 6”) hose from the throttle body to the L shaped plastic elbow of the Intercooler pipe with a replacement from Amazon. The hose was of good quality if not very tight to fit to the throttle body. The car drives ok now with no hissing or restricted performance which I got when the hose split. The problem is, the Turbo Boost will not go over 22psi, it actually flatlines on it exactlty. I have measured the Live Data with two separate diagnostics tools. I’ve seen from monitoring before the hose split that the psi has gone up to 29, so i know something isn’t right.
Do I need to do an Airpath recalibration/reset or is it possible that I didn't get the new hose on at the correct angle or am i just way off the mark

Yours comments/help will be greatly appreciated
Stuart