Hey guys I'm happy to be apart of this audi forum. I have a issue my check engine light came on and the code is p1077 and it says vacuum hose and the epc light came on today. Can you guys help.

 

Can you hear a hissing sound anywhere? Also check your ltft and get back to us? -3 to +5 is good, close to zero is optimum but if your above 10 to 30 percent, there's a small to large vacuum leak. Best course of action is a smoke test to the fuel pressure reg. vacuum line and see where it blows out.