**stock fuel pressure 50 p.s.i??!?**
07-22-2002, 04:25 PM
#1
Thread Starter
Join Date: May 2002
Location: POWERLINE, norcal, usa
Posts: 583
Likes: 0
Received 0 Likes
on
0 Posts
**stock fuel pressure 50 p.s.i??!?**
on my car i have all stock fuel (pump, regulator, no fmu ) i have 450cc injectors with the vafc hack, i put a b&m fuel pressure gauge on cause i have a fpr i was gonna throw on there but my fuel pressure is at 50 psi at idle and whe i pull of the fpr vacuum line it goes up to 55 psi?!? wtf? what could cause this? and when i turn the car off the fuel pressure gauge will drop to 0 over time, does this mean i have a leak somewhere???
and my car isnt running that great on the hack i had to put my settings at -50% at 1000 and -45% at 2000 then -40% the rest of the way.....if i didnt put the 1000 rpm setting like that it would idle really low! are these settings bad??
PLEASE HELP ME OUT!!!!
thanks!
and my car isnt running that great on the hack i had to put my settings at -50% at 1000 and -45% at 2000 then -40% the rest of the way.....if i didnt put the 1000 rpm setting like that it would idle really low! are these settings bad??
PLEASE HELP ME OUT!!!!
thanks!
07-22-2002, 06:21 PM
#4
Honda-Tech Member
Join Date: Dec 2001
Location: The Swamp, FL
Posts: 7,139
Likes: 0
Received 0 Likes
on
0 Posts
Re: **stock fuel pressure 50 p.s.i??!?** (boostinb18)
Fuel pressure at idle is:
B18b - 31 to 36 psi
B18c - 38 to 46 psi
this is with the regulator vacuum hose attached.
[Modified by CDooMe2, 7:24 PM 7/22/2002]
[Modified by CDooMe2, 7:24 PM 7/22/2002]
B18b - 31 to 36 psi
B18c - 38 to 46 psi
this is with the regulator vacuum hose attached.
[Modified by CDooMe2, 7:24 PM 7/22/2002]
[Modified by CDooMe2, 7:24 PM 7/22/2002]
07-22-2002, 06:44 PM
#5
Thread Starter
Join Date: May 2002
Location: POWERLINE, norcal, usa
Posts: 583
Likes: 0
Received 0 Likes
on
0 Posts
Re: **stock fuel pressure 50 p.s.i??!?** (CDooMe2)
what could be causing mine to be at 50 psi???
the small cap on the passenger side of the fuel rail with the plastic cap and the little screw inside that screws onto the end of the fuel rail....the plastic cap is missing off that......will this hurt anything?? the screw inside might have been adjusted?!? could this mess anything up??
thanks!
the small cap on the passenger side of the fuel rail with the plastic cap and the little screw inside that screws onto the end of the fuel rail....the plastic cap is missing off that......will this hurt anything?? the screw inside might have been adjusted?!? could this mess anything up??
thanks!
07-22-2002, 08:20 PM
#7
B*a*n*n*e*d
Join Date: Sep 2000
Location: Philadelphia, PA, USA
Posts: 2,036
Likes: 0
Received 0 Likes
on
0 Posts
Re: **stock fuel pressure 50 p.s.i??!?** (boostinb18)
if you have a stock pump, all stock lines and stock fpr then nothing should cause that. maybe the gauge is off?
Trending Topics
07-22-2002, 10:08 PM
#10
Join Date: May 2002
Location: Barrie, ON, Canada
Posts: 652
Likes: 0
Received 0 Likes
on
0 Posts
Re: **stock fuel pressure 50 p.s.i??!?** (boostinb18)
It read low with the inline pump because you had it after the guage. I don't know why your pressure would be so high unless your FPR is fucked. I don't think that plastic thing will do that, I believe that is just a damper or something. Mine is at 46psi at idle if that makes you feel any better 
. I have a Walbro pump though. Your AFC settings make sense with that much pressure, I would suggest putting a different FPR on and see if that helps.
. I have a Walbro pump though. Your AFC settings make sense with that much pressure, I would suggest putting a different FPR on and see if that helps.
07-23-2002, 04:35 AM
#13
New User
Join Date: Sep 2001
Location: Bradenton, FL, US of A
Posts: 797
Likes: 0
Received 0 Likes
on
0 Posts
Re: **stock fuel pressure 50 p.s.i??!?** (boostinb18)
Man, you fuel pressure regulator is bad/clogged. It is not bypassing enough fuel. It is also possible you have a crimp in the return line or a clog in the return line.
I would replace the fpr and see what happens.
Randy
I would replace the fpr and see what happens.
Randy
Thread
Thread Starter
Forum
Replies
Last Post
s1ngle
Forced Induction
7
05-17-2005 09:10 AM
DLOTYPER
Forced Induction
6
05-31-2003 10:16 PM
TakaIntegra
Tech / Misc
1
06-17-2002 09:55 PM
Lei Siew Long
Forced Induction
6
07-01-2001 03:11 PM
