this can't be good, please look

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Old Feb 28, 2004 | 07:28 AM
  #1  
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Default this can't be good, please look

hey all this is my fuel pressure at idle, on my non obd b16 lately

i don't think it's suppose to be that hi, am i wrong?



btw this is cold start.... fist time in the morning..... i need to change out those washers, damn fuel rail has small leak
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Old Feb 28, 2004 | 07:32 AM
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Default Re: this can't be good, please look (Nismo240sx1)

its WAY to high man.

I dont know what it should be, try 47-50PSI with the vacume hose on. Thats were mine is

Your fuel mileage will be like 3 miles go the galon and it will be as peppy as a riding a pig. Not to mention its killing your cat, if you have one.

-Eric
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Old Feb 28, 2004 | 07:36 AM
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Default Re: this can't be good, please look (HamiltonRex)

no cat, it is still peppy, but just makes no sense.... i have to take vac hose off to adjust right? does the car need to be running or not?
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Old Feb 28, 2004 | 07:39 AM
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Default Re: this can't be good, please look (Nismo240sx1)

yeah take the hose thing off.

I dont even know how your fuel pump is supplying 92PSI to it, maybe the guage is malfunctioning.

-Eric
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Old Feb 28, 2004 | 07:40 AM
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Default Re: this can't be good, please look (Nismo240sx1)

running without the vac hose.

sure its not the gauge?
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Old Feb 28, 2004 | 07:40 AM
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Default Re: this can't be good, please look (Nismo240sx1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nismo240sx1 &raquo;</TD></TR><TR><TD CLASS="quote">no cat, it is still peppy, but just makes no sense.... i have to take vac hose off to adjust right? does the car need to be running or not?</TD></TR></TABLE>

I always take the hose off to adjust. However those B and M gauges are notourious for going bad. I am on my 2nd one right now. They suck. I dont know if you can get a stock fuel pump to run that high a pressure. Just something to check out.


Modified by no2psi at 10:55 PM 2/29/2004
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Old Feb 28, 2004 | 10:35 PM
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Default Re: this can't be good, please look (Nismo240sx1)

I think your gauge is bad. I had the same problem, I had to switch to a liquid filled gauge in order for it not to go bad. The liquid keeps the gauge from vibrating so much and thus not work properly. Good luck.
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Old Feb 29, 2004 | 12:54 AM
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Default Re: this can't be good, please look (Nismo240sx1)

****, i'm pushing like 40 PSi according to my auto meter guage at WOT, and i though that might be too high... does it backfire like a mother when you shift...?

damn... *shrugs*

i think the guage is bad... jmo...
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Old Feb 29, 2004 | 06:40 AM
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Default Re: this can't be good, please look (lvbuckeye)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lvbuckeye &raquo;</TD></TR><TR><TD CLASS="quote">does it backfire like a mother when you shift...?</TD></TR></TABLE>

That will give you an indication if your fuel pressure is actually high. If you really lucky you'll get some nice fireballs aswell!!
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Old Feb 29, 2004 | 06:52 AM
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Default Re: this can't be good, please look (2point2)

so guys whats a good fuel pressure for a GSR engine with I/H/E on obd1?

-Eric
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Old Feb 29, 2004 | 07:08 AM
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Default Re: this can't be good, please look (HamiltonRex)

im guessing also if the fuel pressure is that high its causing the leaks. I run my psi at 40psi with the hose off. THen when i put it on its about 31 or so at idle.

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Old Feb 29, 2004 | 11:29 AM
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Default Re: this can't be good, please look (brent_G)

Your gauge is broken, ive seen it happen many times
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Old Mar 8, 2004 | 08:09 PM
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Default Re: this can't be good, please look (10secondbeast16)

yup no doubt, no chance that 14 year old pump could do 95 now 100+ psi lol.... it's fudged.... any other companies make better ones i could slap on that rail?
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Old Mar 8, 2004 | 08:11 PM
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Default Re: this can't be good, please look (2point2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point2 &raquo;</TD></TR><TR><TD CLASS="quote">

That will give you an indication if your fuel pressure is actually high. If you really lucky you'll get some nice fireballs aswell!! </TD></TR></TABLE>

nope no backfires or fireballs..... i woulda definately took a pic of that lol
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Old Mar 8, 2004 | 08:58 PM
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Default Re: this can't be good, please look (Nismo240sx1)

You'd be throwing misfire codes if that was correct.
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Old Mar 8, 2004 | 11:38 PM
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i bet the gauge is broken. how is your mileage? that much fuel pressure would lead to some dark smoke out the exhaust.
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Old Mar 9, 2004 | 12:01 AM
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Default Re: this can't be good, please look (Nismo240sx1)

autolink has some nice ones.
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Old Mar 9, 2004 | 01:32 AM
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Default Re: this can't be good, please look (Nismo240sx1)

turn down the fuel pressure on the regulator.
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Old Mar 9, 2004 | 05:39 AM
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Default Re: this can't be good, please look (brent_G)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brent_G &raquo;</TD></TR><TR><TD CLASS="quote">im guessing also if the fuel pressure is that high its causing the leaks. I run my psi at 40psi with the hose off. THen when i put it on its about 31 or so at idle.
</TD></TR></TABLE>

This is EXACTLY how stock fuel pressure should be.

with the car running at idle, fully warm, with the vac hose ON you should see 28-32psi. Then take the vac hose OFF and it should jump to 38-42psi.

vac hose disconnected simulates WOT.

Just saw your User name.. this is a Honda civic right?
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Old Mar 24, 2004 | 11:31 AM
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Default Re: this can't be good, please look (crx_88_si)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crx_88_si &raquo;</TD></TR><TR><TD CLASS="quote">
Just saw your User name.. this is a Honda civic right?</TD></TR></TABLE>

yup it's on a non obd b16a, got my new gauge today, marshall liquid filled from inlinefour.com. looks sweet hope it lasts longer than b&m. also since i decided to mess w/ my b&m fpr before i knew the gauge was busted, i had to set it back. set it to 31 idle 40 wot (vac off)
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Old Mar 24, 2004 | 12:54 PM
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Default Re: this can't be good, please look (Majin Vegita)

holy crap your pressure is high. good luck with that
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Old Mar 24, 2004 | 01:54 PM
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Default Re: this can't be good, please look (OneSlowEF)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by OneSlowEF &raquo;</TD></TR><TR><TD CLASS="quote">holy crap your pressure is high. good luck with that </TD></TR></TABLE>

problem fixed. hope this marshall liquid filled gauge works better than that pos B&M, thanks to those who said that was the prob! your exactly right....



btw no it's not cracked, it's liquid filled to keep the needle from bouncing !L33t!
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Old Mar 24, 2004 | 03:11 PM
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pretty fuel rail ;]
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Old Mar 24, 2004 | 03:14 PM
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Default Re: this can't be good, please look (Majin Vegita)

Just keep in mind that your Fuel pressure will be alot higher on cold starts because your car is in open loop so it dumps fuel until it goes to closed loop. But yes that was way to high of fuel pressure at a cold idle.
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Old Mar 24, 2004 | 03:21 PM
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Default Re: this can't be good, please look (Kasper-EF8)

yeah i warmed it up and adjusted it.
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