Hi

This is my brothers van came in lack of power P0243 came up and also brake lights not working replace bulbs and also engine oil quality light on so flushed and changed oil and filter road test and only p0243 comes back on live data the boost sits at 102kpa and airflow is at 12kg/h when revved up boost goes down to 99kpa and air flow around 115kg/h ive compared this to a mates same van and boost goes a lot higher im thinking the turbo has gone there is a lot of oil in the turbo pipe work and with the boost pipe of the turbo off and revving it up can not feel a real lot of pressure any help or thoughts

Thanks Paul