fuel pressure regulator
Mine is on a 93 GS300 with a 2jz engine, but the principle is the same. Look in the top right corner of this pic.. see the steel braided line (-6AN) ? That is going to to the return port on the factory fuel pressure regulator. From there it goes to the side port of your fuel pressure regulator. The bottom port on your new fuel pressure regulator goes back to the hard return line on the car. Think of it this way.. all a FPR is doing is creating a controlled crimp on the fuel return line to increase pressure at the fuel rail. You also need to tee into an existing vacuum line and run that to the port on the guage. It is a reference for the pressure on the internal diaphragm.. especially in boosted applications.
Hope this helps!
Hope this helps!
Pole Position
Joined: Sep 2004
Posts: 363
Likes: 0
From: Missouri
Originally Posted by HKS_GS430
where do i hook up a fuel pressure regulator to,need it for NOS. 
A little more info on the car would help, but I will Assume you have a GS430 by your mane and that would meane it was a 98+ model. Your fuel presure regulator is located in the tank. Our cars use a single line fuel system. The las time I did a NOS kit on a IS300 (same fuel setup) I taped the fuel rail and got fuel from there.
Hope that helps
Ben
OOps.. yea I guess I should have asked for more info on the car first. FWIW.. my write-up above is for cars with a "returning" fuel system. You have a "non-returning" fuel system.. meaning there is only one fuel line coming into the engine bay.
Thread Starter
Pole Position
Joined: Nov 2004
Posts: 266
Likes: 0
From: Massachusetts
so i would i be able to tap in to the fuel pressure from the engine bay, i dont want to noob this. .
i am only going to run a dry set up with this car, just for a lil kick.I am going to use a window switch too to turn on/off the NOS.
my name is BEN too
.i am only going to run a dry set up with this car, just for a lil kick.I am going to use a window switch too to turn on/off the NOS.
my name is BEN too
Pole Position
Joined: Sep 2004
Posts: 363
Likes: 0
From: Missouri
Originally Posted by HKS_GS430
so i would i be able to tap in to the fuel pressure from the engine bay, i dont want to noob this. .
i am only going to run a dry set up with this car, just for a lil kick.I am going to use a window switch too to turn on/off the NOS.
my name is BEN too
.i am only going to run a dry set up with this car, just for a lil kick.I am going to use a window switch too to turn on/off the NOS.
my name is BEN too
You realy need to run a wet system. There is no safe way to run a dry system.
Ben
Trending Topics
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
Lexus NX 350h: A Fuel-Sipping Secret Hot Hatch???
Michael S. Palmer
5 Best & 5 Worst Lexus Daily Drivers
Joe Kucinski
Top 5 Hottest Lexus & Toyotas in 2026 (Hardest To Buy)
Brett Foote
2026 Lexus IS 350 F Sport Review: The Last of Its Kind Still Rocks
Michael S. Palmer
Top 10 Most Confusing Things Lexus Has Ever Done!
Joe Kucinski
2026 Lexus ES Review: Lexus Re-Embraces Founding Principles
Michael S. Palmer
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4
Joe Kucinski
8 Weirdest Things Lexus Has Ever Built
Verdad Gallardo
10 Lexus Designs That Have Aged Like Fine Wine
Verdad Gallardo
Thread
Thread Starter
Forum
Replies
Last Post
