Im referring to the three lines that run under the driver side of the car and up into the engine bay. One is the feed line from the pump, one is the return to the tank, and one is the vacuum.
I just need to know which one is which?
Thanks in advance!

 

Also does anyone know the dia. of the lines? Im planing on connecting the an lines (fuel lines) with compression an fittings .

 

If you still have the factory connections you'll see that the furthest one forward is the feed second is the return and the third is the purge line. If you have the lines stripped to the factory hard lines that run up from the tank (halfway up the firewall), from left (passenger sided) to right (drivers side) it will be purge, return, and feed. If you want to be completely sure put a hose on each line and put them into a coffee can and cycle the ignition and see which one is dripping after you turn off the ignition. But I'm 99% sure this is the order.

 

The lines are still stock.

 

Thanks!

 

Does anyone know the diameter of the lines? I cant find my calipers...

 

Also the "purge line" is the vacuum... correct?

 

5/16" Make sure to use "fuel injection hose".

 

Awesome! Thank you!

Im going to be using either 6 or 8 AN lines for my fuel along with a compression fitting to hook everything up from the lines to the regulator and then to the fuel rail.