i'm running a aeromotive fpr w/ a return line but don't know which is for what. i know one is for feed, another for the return, but what is the third one for?

added* i remember when i had my old fuel setup w/ a return line the third line was not even hooked up. would that be okay?

 

you could hotwire the fuel pump and see which is the feed line.. out of the other two. one is the return and the other could be a vent, or go to the evap system..
if you dont get an adequate response later.. ill take a look at my civic and let you know which is which..

 

i think the one in the middle is the feed and the one on the left is the return. and the one on the right is just there lol, i don't know what it is.

 

anybody know which is for which?