ramontr

i am getting a zex inline fuel pump installed on monday they recomend having a return fuel line for the system. i was wonderng i you guys could tell me if a 2001 kia optima has a return fuel line. and if not will it sill be safe to install the fuel pump without damage to engine or whatever.

Decker

well if you DON'T have a return fuel system then you can be putting alot of pressure on your fuel system. and can cause damage.

open up your hood and take a look at your fuel line(the one with the injectors on it) and see if it has a fuel line coming from and to it. if you only see one fuel line or hose connected to it, then you have a returnless fuel system, but if you have two you have a return fuel system and your inline pump will work.

ramontr

well i to a look and i see two metal tubes hooked to the injuctors, but not real sure

Random

If you have one line going into the fuel rail, and another coming out of the others side, then you have a "normal" return fuel injection system.

If there is only a line running IN to the fuel pump, and no fuel line running out, then you have a RETURNLESS fuel injection system.

Don't confuse a fuel return line with a vacuum line, make sure the hose is over 3/8" outter diameter if rubber, or over 1/4" if metal.