Problems with vehicle
 

Not sure if I'm posting in the correct thread, so here goes

I have a 2002 Audi A4 3.0L 110K miles took it to a private mechanic and had a grocery list of codes.


My car has been idling at stops runs fine for 30-40 miles then shuts off completely. Im usually able to start it back up without a problem.

A friend of mine took a look at the codes from my diagnostic and hooked my car up to his code reader. He determined my main issue was the fuel pump.
He replaced the fuel pump and relay but my car is still idling and shutting off!!!

Does the engine speed sensor or crankshsft sensor need to be replaced as well?
Im also getting a CEL, ABS, triangle with ring around it, and EPC light.