Fuel Pump

[McGreg5227]

Hi everyone

My car broke down last night

Its been perfectly fine, no troubles. Yesterday went to the shop, when got back I started the engine and it turned itself off  and didn't start since

Called green flag, and after some checks man said that must be either fuel filter or fuel pump. there was no fuel coming when I tried to start it, but when he sprayed something in the throttle body, than car started fine for a second. 

My question is is there anyone near me (Newark)  who could advise me where to find fuel pump and what sort of pump is it. I have 2002 a4 b6 2.0 petrol engine ALT

thanks