sealf76

My Q7 has been giving me low fuel pressure regulation error for a while. The error code was P310B - 004.

So, finally I decided to pull a part of that. Because, I wanted to see that what is wrong with the sensor.

And I found a broken O-ring that aroud sensor. So, I replaced the O-ring then, the error code gone.

I hope to help someone who has same issue like me.

Check the sensor's oring.

The low fuel pressure issue could be from small O-ring.

Here are some pictures...

hmmm.... I can not upload any picture.....

sealf76

Pictures

DUTCH VanAtlanta

Which engine and where is the sensor located?

sealf76

Engine: 3.6l fsi v6.
Location: Right back side - when you face the engine in front of the car- of engine, on the fuel Regulator. You may notice yellowish metal piece sticks out of fuel regulator. You can easly twist off with 6in handle 24mm monkey wrench. Afte remove a connector that attach to it.