2012 3.0 tfsi knocking engine noise after s/c change

[Uti1986]

Hi all,

Now I need to ask you for help and I hope I can fix these.

Checking the stethoscope and the noise sounds like it comes from a pipe between the high pressure fuel pump and the fuel pipe, watch the video.

https://youtu.be/3mc3KjXUtcM

The noise started after I replaced a bad supersharger for a used one. At the same time I replaced a new thermostat and a water pump.

These I have made no changes.
- I replaced all the sensors, throttle, air valves, etc. from old / old.
- Reprogram ecu.
- Removed s / c a total of 3 times and check all cable connections for anything broken and pipes looking good.
- No error codes.
- New high pressure fuel pump replaced.
- New cam follower piston and follower housing replaced.
- Check rail pressure. It should be normal and the pressure rising after the engine has been stopped.

Vcds code reader is available if it helps with the problem.

[GT-ER]

Sounds pretty normal to me. The HPFP and injectors are noisy. Could it be that the bad SC was louder and didn't allow you to hear the "new" noise?

[Uti1986]

Sounds pretty normal to me. The HPFP and injectors are noisy. Could it be that the bad SC was louder and didn't allow you to hear the "new" noise?

It may have been possible that I could not hear the sound with the old turbo because the sound was rough.