fuel pressure problem

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
User avatar
I ask good questions
Posts: 500
Joined: Thu Dec 16, 2004 9:02 pm
Car: 92 240 SXSE Coupe with SR20DET

Post

I just installed a nismo FPR and set it to 36 psi with the vacuum hose attached which is what the fsm instructed me to do. Now my car runs like ****e! What should i check and adjust?


User avatar
Rosco
Posts: 1207
Joined: Sun Mar 28, 2004 10:00 am
Car: 91' SR'ed Hatch

Post

Set it at 43.5 psi. Searching is your friend .

User avatar
wildacexxx
Posts: 500
Joined: Thu Jan 13, 2005 6:17 pm
Car: 2002 Q45 nav sport

Post

why so high. isnt stock pressure 36?

User avatar
da40
Posts: 900
Joined: Thu Mar 02, 2006 12:07 pm
Car: 1995 SE 240sx

Post

im with

User avatar
C - ROD
Posts: 563
Joined: Sun Sep 18, 2005 5:01 pm
Car: SR20DET pignose hatch

Post

i believe the stock fuel pressure is about 43 - 45adjust it to there & let us know if it fixed the problem

pearlS13
Posts: 92
Joined: Sat Nov 12, 2005 2:43 pm
Car: 90 240sx

Post

stock fuel pressure is 43.5 psi (vac line disconnected).

User avatar
I ask good questions
Posts: 500
Joined: Thu Dec 16, 2004 9:02 pm
Car: 92 240 SXSE Coupe with SR20DET

Post

right... 36 psi with the vac line connected... i set it originally at 43.4 psi with the vac line plugged in... =7.4 psi too much... i went back to the fsm and i had read wrong and i fixed it... i just fouled my plugs... its running fine now. Thanks guys. I think i still need to adjust my plug gap.

User avatar
Rosco
Posts: 1207
Joined: Sun Mar 28, 2004 10:00 am
Car: 91' SR'ed Hatch

Post

Everytime I see your car in your sig, it reminds me of an FD....Glad to hear you fixed your issue IAGQ.

DrifterProdigy85
Posts: 1817
Joined: Sat Jul 02, 2005 7:42 pm
Car: 1989 Nissan 240sx (Zenki Onevia)

Post

You set the FPR to 43.5psi with the vacuum line disconnected from the FPR. Once its plugged in, the pressure should drop to near 36-37psi. Do not set the FPR while vacuum is connected or things will act funny.

User avatar
I ask good questions
Posts: 500
Joined: Thu Dec 16, 2004 9:02 pm
Car: 92 240 SXSE Coupe with SR20DET

Post

hmm... well its acting funny now. I guess that I need to reset it.


Return to “SR20DET Forum (rear-drive)”