Rollback to previous software that worked is what I would have done to rule out any problems.. then change sensors etc.to see if issue goes away.

REH17, appreciate this is an old post but having similar problems with my car, 2012 Octavia Estate 2,0Tdi CR140 and has the 'missing' pipe on the pressure sensor. Had a turbo replaced and garage fitted new lambda sensor and pressure sensor but did not code it in, as far as I can find out at the moment, as the guy I need to speak to is not available. Can you find out what software you have through VCDS as I do have that?