So quick run through. fuel pump went bad. audi replaced. week later, car is running like crap. hard to start like it is not getting gas. so i took back because the CEL came on. I got these two codes.
p1136

p1128

They told me it was two breather hoses, so i replaced them.
Still same codes. Then they said spark plug coils, so i replaced them and spark plugs.
Then i noticed they did the fuel pump but not the filter. it had 150K miles on the original. So i replaced that.
Still same codes. WTF could it be??
Fuel pump relay? What could still cause those codes.
Whats the best way to reset the computer? I checked and all hoses are good. no leaks, no vaccuum leaks.
This might help too. There is a loud noise coming from the back of the car that sounds like the pump is working overtime.
Its almost like a clicking noise! then when its done clicking, i hear a loud bang. its not a backfire but it shakes the car. Almost like the fuel pump is blasting out of place!
I am at a loss and audi still can figure out the problem! The fuel cap is also making some funny noises. A lot of air is being sucked in and just standing next to car you can hear the hissing. I replaced the cap too. same problem.

Car revs ok but when in gear, any throttle will stutter the motor! Turbo is spinning fine. I bought the car with a BOV on it and just replaced with a DV. The BOV was on there for a long time. I bought a downpipe but have not put on yet. Audi also told me it could be my computer fucked up. I have Apr chipped.

Please help or im gonna throw this car off a cliff!
Thanks

 

did you check the fuel presure?

 

audi checked it and they said it was fine!

 

so if the fuel pump makes that noise and you hear it
then it must be one.

 

Since its only on one side make sure the oxygen sensor is working on that bank. Other possiblitys include plugged injectors. And maybe even a bad maf.