Dont no if any 1 can help but my cars gone from 16psi down 2 10psi so its lost 6psi

 

Could have gone into safe mode if your boost spiked. Possibly do a diagnostic check.

Or youve done a piston/ring. Check for petrol in the sump (sniff the dip stick) Mine did this but only dropped 1 psi!

Thats as much as i know, dont take it as gospel as im sure theres others who will post with more knowledge.

 

its defo not done a piston or ring because it would smoke its **** of. will do a diagnostic and have a look