Took the wifes vectra (2.2DTI) out today and the dreaded engine management light came on, scanned it and found these faults:

Total number of fault codes: 2

P0400 - Exhaust Gas Recirculation Flow Insufficient Detected
(5A) - Not present

P0234 - Boost Pressure Control Circuit Negative Deviation
(5A) - Not present

I did a couple of tests but I dont understand the results and would appreciate some comments, I will obviously try cleaning egr and boost sensor but need to understand the results so I know if the parts are working correctly.

Below are some images from the tests, boost pressure and EGR test, the EGR feedback did for a split second switch from okay but it was that quick I didnt get to read what it changed to