Fuel issues
Please can someone help I bought an a6 c6a few months ago I have been having starting problems over the last few weeks the car starts and then the revs drop and car cuts out and then won't startI had rac out they got codes p1602 and p3073 some thing to do to with fuel pump circuit malfunction after the codes were cleared the car started drove it for a few weeks then same problem again just had same problems again today car started rev between 1000-2000 then drop to zero and car doesn't start tried a few times start then cuts out finally got it to start, one garage could be fuel pump or fuel pump module but as the car was fine at the time couldn't say for sure also when I press throttle it doesn't go above 4000 revs, had a look at some threads some say could be fuel pump relay any help appreciated



