where can i see the 4 bar ?

Hello everyone
I was looking for the location of this piece in my car and I did not see it
Where is its location in the car?

That's the fuel pressure regulator, it's on the end of the fuel rail at right side.



Standard version should be 3 bar, rising rate.

(BTW forum attachment manager not working for me, always giving "We encountered a problem. The reason reported was:
Files can be no larger than 0 Bytes." Happens with dragging + dropping the file or with browsing to it directly).

thank you
but There is one tube I do not know where to connect

see at this video

https://www.youtube.com/watch?v=x0tPzq7GqAM

finish i see that
but my problem in crankshaft because i see before little broken
and when i change the RPM sensor i see small steel there

thank you