how are the fuel lines routed i forgot and have everything torn apart and putting it back together, the line from the filter does it go to the secondary fuel rail? and the fuel return does that come off the primary fuel rail?

 

I'm pretty sure it goes to the secondary fuel rail on the USDM engine and on the JDM engine it goes to the primary.

 

well on mine i looked at some diagram
and it goes..
fuel filter ---> primary fuel rail (smaller, lower one)
fuel return line ---> secondary fuel rail (longer, higher up)

but then again my car doesnt run right now so that could always be wrong.

 

.

 

fuel pressure line with filter goes to primary rail. Then the tube from primary goes to 2ndary rail, and back down to the return line