i have a 1999 a6. i don't have any power going to my fuel pump. i checked fueses and replaced the relay. what else could it be?

 

not to sound condescending, but how did you test for voltage?

 

used a test light

 

The next culprit would be the harness. Start tracing the harness back towards the battery until you find voltage.

 

I would go to the relay and make sure it has voltage where needed (I bet not). Then, you have to go upstream to find out what items affect the turning on of the fuel pump relay, such as the ignition switch or relay.

If the relay is being powered and is working (hove to check both, then test continuity from the relay socket to the fuel pump connector.

Bob