So I went to start my car yesterday, and all it did was crank and crank and crank, but no start. The first thing I thought was fuel so I disconnected one of the lines going to the fuel filter and cranked again, and nothing came out. Grabbed my multi meter and checked the fuse, and for proper continuity between the fuse and relay. That all checked good, so I went and checked for voltage at the connector for the pump/sending unit while cranking and that was all good too. With the fuel line off at the sending unit housing, I tried cranking one more time with all the plugs reconnected and still no fuel coming out the line. The pump has continuity when probing into the two terminals of the connector but it still doesnt seem to be working. Im pretty confident in a bad fuel pump diagnosis but I was just wondering if anybody had anything else they might suggest looking in to.

 

Hey hi,
Please can you let me know how you get on,, my A3 is driving me insain, sometimes it will start and drives well, but i never know when it wont, same as you, no fuel seems to be getting through, a garage changed the fuel pump relay, ( im a woman what do i know ) it was ok for a week ha! but there again it may start fine for a week, good luck with yours.
Many thanx elle.