Air leak fault code P2279

[Stokey bloke]

Hi thanks for letting me join you ,
I'm from stoke on trent, , I'm hoping someone will be able to help me out , I have a 2017 t6 2.0 bi-turbo 204bhp is throwing code P2279 air leak , I've done the usual smoke test and sprayed everything with brake cleaner ,but can not find any leaks , I'm thinking pcv ,as anyone else had this and can help, thanks in advance

 

[Stokey bloke]

 

[mmi]

First verify that manifold pressure sensor G31 gives correct reading when engine is off => should read the same as local atmospheric pressure.