I am getting engine codes on my 2005 Audi A4 1.8T and I am not sure where to start looking. Here are the codes:
P0442 - System Small Leak
P0456 - Evap Small Leak
P0011 - Camshaft Position
P0340 - Cam Positioning Sensor
P0455 - Large System Leak

I had 0456 for a bit and then all the others showed up. Please let me know what you think I should check first. I don't have the money to go to a shop. Please help.

 

First off, you'll want the B6 forum for better help: B6 Models - AudiForums.com

This is the B5 area.

Secondly, clear the codes and see which come back. Some (like P0455) seem to be one-time issues (that one is a loose gas cap, which was likely fixed the next time you filled up).

After you clear them, come back (to the other forum for better help) and see what help you can get.