I don't see an image but I'm guessing you mean the fuel pressure regulator which is the round thing where the fuel line splits to bank 1 and bank 2.

Sixto
04 LE FWD 240k miles

 

thanks for this pic! My 2004 xle awd has what appears to be solid fuel lines from what I can see so I dont see a way to add a shrader valve . Your pic looks like hoses. Did you remove this system from your car or is this just a pic from some other vehicle! thx