vehicle runs great check engine light on fault code p-0171 fuel system lean. on 2001 Volkswagen Passat

any quick fix for this? 1.8 litre turbo?

Asked by for the 2001 Volkswagen Passat
171 is lean commands. could be vacuum leaks, mass air flow sensor, low fuel pressure or bad pcv.

all need to be checked

Thank you very much for your prompt response