Hook up FP guage to stock system?

[mkIIIman089]

Hey all, I have a Greddy FP guage which i got for future tuning purposes and so I can watch it from the drivers seat; not just under the hood once I upgrade fuel. So for now it just sits there at 0 all the time and its kind of annoying to have it not working. In the manual it says to just splice the fuel line with 2 barbed fittings, a 3 way joint>braided line>pressure sensor.

If I can get a fitting that just goes right off the fuel line (from summit for example) to the guage that shouldn't create erratic readings for some reson would it? Due to it being right on the line or anything?

Also, what size tap should I get? A 3/8 or 1/2; I really just want to get the correct size for the hose so I do not hinder fuel delivery in any way.

Thanks!

 

[lintlars]

What I did was where the cold start injector installs into the fuel rail get a barbed banjo fitting and use the stock banjo bolt and just leave the cold start injector off while you set your fuel pressure DO NOT install it inside the cab I ran a hose from the fuel rail to the guage that I mounted on the window to a small pod that I made for the guage.