I have a 2002 Audi A4 3.0 Quattro and today I was going up a mountain and the epc light came on before I left and it started up but sounded like it was cammed. So anyways I shut it off at the top to see if it would go off and when I tried to start it again it would just turn over and not start I'm thinking it was something to do with the fuel pump because you couldn't hear it kick on so anyways after sitting for a half hour or so I heard the fuel pump kick on and it finally started. My question is would the fuel pump be going bad or is it something else?

 

Have you read codes.

https://www.audiforums.com/forum/b6-...-engine-97981/