Looks to me to be:
- Injector replacement. Minimum of 3 to be replaced if there is a faulty injector on only one bank, possibly all 6 if there are bad injectors on both banks. If your car has had injectors replaced previously you could get away with only replacing the faulty injector(s) depending on the revision of injector used.
- VANOS solenoid(s) failed/dirty: The exhaust VANOS solenoid, intake VANOS solenoid or both are having some trouble. Sometimes a clean is all they need but they could need be replaced.
- The third error shares the fault code with the VANOS error above, but the description relates to something on the boost control side. Strange one.