P1411 P1423 Audi - DTC What can I do to fix these issues?

Question

My check engine light is on and I need these issues resolved immediately but I am not sure what is needed to fix them. I've looked up the codes and understand that the air flow is too low. What does "bank 1" and "bank 2" mean? What do I need to look for and how do I fix it?

Answer 1

Bank 2 flow to flow