2000 A6 2.7T won't start
 

Yesterday replaced both EGT sensors and an oxygen sensor. Ran fine but then threw a code for the MAF and ran a bit rough. Checked connection everything seemed fine. Cleared code and then restarted car and continued driving. Stop for dinner, ten minutes later with a bad of Five Guys burgers go to start the car and all it does is crank. Checked everything I could think of, cleaned the MAF based on previous code thrown. Any suggestions before I take it to a shop?

Thanks.

Have you tested your camshaft position sensor?