need help with 2 triped codes

[bigmook078]

just worked on my headlights last night and 2 codes triped,

18010, power supply (b+) terminal 30: low voltage speradic

16795, secondary air intake system incorrect flow detected.

[DDQ]

The first code will show up anytime you disconnect the battery, don't worry about that one, just clear it.

That second code could be variety of things, depending on what engine you have. Are you a 2.8? If so, I think it's somewhat common and there was a recall for it, and you can find a lot about it if you search for "16795" on AudiWorld.