04 vw Passat has a miss says air injector system incorrect flow, help

Question

car has a miss when u hit gas a little hard, code is po411 and po299 turbocharge under boost

Answer 1

P0411 Secondary air injection sytem incorrect flow detected

P0299 Turbo / super charger underboost

For the secondary air injection if the air pump does not operating this will code up secondary air fault, so the pump has to work ,it s on for at least less than one minute on cold start up. The secondary air injection hose has a tendecy to get disconnected especially at the mass airflow duct, As for the underboost the charge air pressure sensor  replace will more likey resolve this issue,