Need vacuum layout for b18 in 91CRX SI....

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Old Feb 21, 2003 | 10:17 AM
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Default Need vacuum layout for b18 in 91CRX SI....

I have the b18 in and running but the lines are all messed up and its getting bout 8mpg and throwing a map sensor code....I know the lines are all mixed up so any help would be great...
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Old Feb 21, 2003 | 10:34 AM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (forward_motion_crx)

heres one from a b16a, not sure if it will help
http://texas.clubsi.com/brandon/crx/swap/b16a.zip
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Old Feb 21, 2003 | 12:27 PM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (slowpokesi)

ls has more lines than b16, i dont know if you can see where the small vacuum lines are routed but here is the pic http://filebox.vt.edu/users/ssteinbe.../rexengine.jpg
ill try to take closer pics
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Old Jul 8, 2004 | 06:43 PM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (Flexmyrex)

talk about bringing a thread back from the dead,

anyway I could use a diagram for my swap. I have a '91 LS in my '89 CRX Si. still need to get the vacume lines all in and could use the help of a diagram anyone know of one?
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Old Jul 8, 2004 | 07:56 PM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (KaoticSnow)

map runs off tb everything else runs off vac IE manifold
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Old Jul 8, 2004 | 08:12 PM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (DohcVtecCrx)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DohcVtecCrx &raquo;</TD></TR><TR><TD CLASS="quote">map runs off tb everything else runs off vac IE manifold</TD></TR></TABLE>thx I'm workin on it now. if I have more questions I'll pm
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Old Jul 8, 2004 | 08:16 PM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (KaoticSnow)

look at the underside of any integra hood...there is your answer.
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Old Jul 8, 2004 | 09:23 PM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (kylefakesi-r)

to bad I don't have a integra hood to look at. anyone have a pic?
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Old Jul 8, 2004 | 11:40 PM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (KaoticSnow)

Here is a great link for b16a vac lines http://b16a.honda-perf.org/Tech/vacuum.jpg. Now of course the crx dosent have the pressure cut-off valve. so i ran thew hose from my pressure regulator to the back of the intake manifold and i dont havce any problems
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Old Jul 8, 2004 | 11:44 PM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (Hybridcrx469)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybridcrx469 &raquo;</TD></TR><TR><TD CLASS="quote">Here is a great link for b16a vac lines http://b16a.honda-perf.org/Tech/vacuum.jpg. Now of course the crx dosent have the pressure cut-off valve. so i ran thew hose from my pressure regulator to the back of the intake manifold and i dont havce any problems</TD></TR></TABLE>

nice that is exactly what I was looking for thanks a million
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Old Jul 8, 2004 | 11:56 PM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (KaoticSnow)

heres a better 1 http://www.geocities.com/droppedcrxsi/vacuum1.htm
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Old Jul 9, 2004 | 12:05 AM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (droppedcrxsi)

sweet, I'm guessing there's no diff between the b16 and b18 correct?
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Old Jul 9, 2004 | 12:16 AM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (KaoticSnow)

What b18? a,b, or c?
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Old Jul 9, 2004 | 12:26 AM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (droppedcrxsi)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by droppedcrxsi &raquo;</TD></TR><TR><TD CLASS="quote">heres a better 1 http://www.geocities.com/droppedcrxsi/vacuum1.htm</TD></TR></TABLE> I think i've seen that one before but the purge cut-off vac line isnt supposed to be going into that area. that person who made that drawing was using a pressure regulator cut-off valve! which the crx doesnt have. at least my DX didnt
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Old Jul 9, 2004 | 12:26 AM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (droppedcrxsi)

lol, yea that would have been a good thing to state, its a b18a all thats left is the vacume lines and a few small stuff
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Old Jul 9, 2004 | 12:32 AM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (KaoticSnow)

Damn it would be nice to have saved for the B18

WOW, i was just checkin out your website. Now thats a project!
Good luck man

How about some under the hood shots?


Modified by Hybridcrx469 at 9:42 AM 7/9/2004
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Old Jul 9, 2004 | 12:50 AM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (Hybridcrx469)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybridcrx469 &raquo;</TD></TR><TR><TD CLASS="quote"> I think i've seen that one before but the purge cut-off vac line isnt supposed to be going into that area. that person who made that drawing was using a pressure regulator cut-off valve! which the crx doesnt have. at least my DX didnt </TD></TR></TABLE>

Whatever man, I made that chart, and for my 89 crx si, it worked perfect. I passed cali smog with flying colors. Ryan
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Old Jul 9, 2004 | 12:57 AM
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Default Re: Need vacuum layout for b18 in 91CRX SI.... (Hybridcrx469)

thanks, the engine is in the car now, let me see If I can find my engine shots befor I droped in the engine. I have been trying to locate my digi cam for some time. anyway I have the pix on my 35mm I just need to get it developed.
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