Hey im trying to finish my mpfi swap on my d15, i have a intake manifold from a d16a6, anyway when i went to hook up my fuel line i noticed that instead of being a hole on the side of the fuel rail, there is a hole on the end, this leads me to believe i have to get a fuel line from an si too?

and i've tried like 2 different fuel rail nuts and i cant seem the find one with the right threading, it looks like the d16a6 has very fine threads, and the others have like coarse almost, why are they so different?

 

bump

 

you can use your fuel line. the si fuel rail doesnt just have a nut that goes on the end. i forget what its called . think its a dampener. but its round with the nut built on it .i know the fuel line nut from a dx will not thread on the si fuel rail.

 

well i was lookin at the difference between the dx and the si manifolds, the dx has the fuel hole on the side of the screw, and on the d16a6 manifold its on the end -- see what im saying --

 

I used the DPFI fuel lines but you have to use the Si fuel rail and the Endcap for it to make it work.

 

yea u need the special nut on the end. if you use a 92-95 civic fuel rail it works the same as the dx with the hole in the side of the rail not on the end. i just found that out yesterday.