I am about to fit a used 2004 3.0 AVK engine into my 2002 B6.
My original engine had a fuel return line.
This new engine does not. Anyone know if I can proceed without it and just plug up the unused line back to the tank?
Or is there some other magic that necessitates me swapping back to my old fuel rail arrangement?

Mark

 

Was your original engine a 3,0 as well?

 

Yes, both my original engine and this one are 3.0