2.7T P0021 and P0011 But Runs Fine??
 

Hello everyone!
I pretty much always baby my 2.7T '05 Allroad but from time to time open her up to 100 mph or so on the highway for short distances.
Upon starting the car after one such trip I got a check engine light which gave me a P0021 and P0011 code.
The car continued to run completely normal without any problems. Fuel mileage, power and everything else was just fine.

I decided it was time to change the timing belt since I have 110K on the car and thought that this might cure the codes as well.
I did my homework, got all the right tools and did the complete timing belt kit without any problems and then cleared the codes.https://www.audiforums.com/forum/ima...ons/icon14.gif
The car ran completely normal again but the same P0021 and P0011 codes returned right away.

I can't seem to find any information as to what would cause both codes at the same time without any performance issues.
Seems like we can rule out the timing belt as the codes occurred before and after that work.
Any clues as to what the problem might be would be much appreciated!
Thanks,
Russell
Kalispell, Montana