148 g/s is standard for a 1.8t auq ive pulled 152 g/s in my unmapped auq
and yeah actual vers requested boost is WAY off points to boost leak!
a mapped car im sure peaks at 20psi and holds 16/18?
9 is very low
Mine peeks at 20 then holds 18 psi for 2-3 seconds Then works it s way down to 10-12 could this be a vacum pipe . Boost leak and also got a hunting on idle and i bit jumpy when pulling out of a junction and acceleration ? No fault codes on vag.com
