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Plugs look lean but fuel pressure is at 45psi

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Old Aug 19, 2003 | 06:11 AM
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Default Plugs look lean but fuel pressure is at 45psi

Alright I've got a '91 integra RS, I'm running crower 62403 cams with stock pistons valvetrain and timing. I've got a generic remote mount fuel pressure regulator set at 45 psi(for safety until I get it tuned), I've got a safc also but the only tuning on it is for leaning it out at idle(-15% at 1000rpm).
I've been looking over my plugs for the past few months and they appear lean, the insulator is white with just a tiny hint of brown and the post has tiny white flecks on it. It's consistant accross all four plugs. The exhaust is very sooty though.
I'm thinking it might mean that my injectors are not flowing right(blind guess), but I've been using swepco 503 fairly regularly to clean the injectors. I tested the resistance on injectors 3 and 4 and I got 3ohms on both, but I didn't check 1 and 2 could it be possible that my injectors are going bad?
If my injectors are tanking I might as well upgrade to slightly larger injectors as I plan to up the compression within a year(bought some p30 pistons), buy a skunk 2 manifold and 65mmTB, and do some porting. What size would be good? I think I heard someone using 270 injectors with a simular setup.
Any help would be great.
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Old Aug 19, 2003 | 07:20 AM
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Default Re: Plugs look lean but fuel pressure is at 45psi (Stubbs)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stubbs &raquo;</TD></TR><TR><TD CLASS="quote">I've got a generic remote mount fuel pressure regulator set at 45 psi
</TD></TR></TABLE>

problem one of many.
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Old Aug 19, 2003 | 08:58 AM
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meaning...
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Old Aug 19, 2003 | 09:01 AM
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Default Re: (Stubbs)

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

you put a p.o.s. regulator on your car.
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Old Aug 19, 2003 | 09:06 AM
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just because it's not made by b&m or AEM doesn't mean it's a p.o.s regulator, but that's beside the point because the plugs looked the same before I put the regulator on anyways
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Old Aug 19, 2003 | 09:10 AM
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Default Re: (Stubbs)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stubbs &raquo;</TD></TR><TR><TD CLASS="quote">just because it's not made by b&m or AEM doesn't mean it's a p.o.s regulator</TD></TR></TABLE>

you even stated is so no-name unit.

what kind of friggen quality control do you think they have ?

and as far as the plugs looking the same , thats more than likely due to their self cleaning nature.
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Old Aug 19, 2003 | 11:05 AM
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whatever, I don't want this thread to turn into a shouting match about a regulator, if you think it's crap believe whatever you want

Anyone else have any more ideas as to what would cause the plugs to look lean


Modified by Stubbs at 9:55 PM 8/19/2003
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Old Aug 19, 2003 | 11:42 AM
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Default Re: (Stubbs)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stubbs &raquo;</TD></TR><TR><TD CLASS="quote">whatever, I don't want this thread to turn into a shouting match about a regulator, if you think it's crap believe whatever you want

</TD></TR></TABLE>

I didnt know I was shouting.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stubbs &raquo;</TD></TR><TR><TD CLASS="quote">
Any else have any more ideas as to what would cause the plugs to look lean</TD></TR></TABLE>

did you not read what I posted ?

post a pic of your fouled plugs , I wanna see this.

whether I'm being a ******** or not is beside the point , I'm actually trying to help you and you refuse to accept a possible answer to your problem.
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Old Aug 19, 2003 | 01:04 PM
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I know the regulator is not the problem, because the plugs looked the same before I had put a regulator on. I put the regulator on to see if adding fuel pressure would solve what looked to be lean plugs, it didn't. so unless my stock fuel pressure regulator was bad too, I don't think it is the regulator.
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Old Aug 19, 2003 | 01:06 PM
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Default Re: (Stubbs)

: shrug :

whatevs...
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