What would cause the idle to fluctutate on my 90 CRX Dx??

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Old May 27, 2003 | 07:08 PM
  #1  
Cam79's Avatar
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Default What would cause the idle to fluctutate on my 90 CRX Dx??

Something is wrong and i dont know what it is, ive heard it could be a head gasket.

Any ideas??

TIA Guys

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Old May 27, 2003 | 08:00 PM
  #2  
Cory man's Avatar
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Default Re: What would cause the idle to fluctutate on my 90 CRX Dx?? (C00SI)

Be a little more specific and we will help.
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Old May 27, 2003 | 08:02 PM
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Default Re: What would cause the idle to fluctutate on my 90 CRX Dx?? (Cory man)

A vaccum leak would it. Along with allot of other things to. What have you checked so far?


Rob
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Old May 28, 2003 | 01:08 PM
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Cam79's Avatar
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Default Re: What would cause the idle to fluctutate on my 90 CRX Dx?? (Cory man)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cory man &raquo;</TD></TR><TR><TD CLASS="quote">Be a little more specific and we will help. </TD></TR></TABLE>

I dont know what the hell the problem is thats why im asking you guys, to see if any one has delt with this before. Its a 90 dx the idle goes up & down , up & down , and you get the point.

TIA

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Old May 28, 2003 | 04:24 PM
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Default Re: What would cause the idle to fluctutate on my 90 CRX Dx?? (C00SI)

did you check the eacv?
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Old May 28, 2003 | 06:23 PM
  #6  
Cam79's Avatar
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Default Re: What would cause the idle to fluctutate on my 90 CRX Dx?? (fastcrxsi90)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fastcrxsi90 &raquo;</TD></TR><TR><TD CLASS="quote">did you check the eacv?</TD></TR></TABLE>


sure did took it off and cleaned it out too
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Old May 28, 2003 | 07:47 PM
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HondaRue's Avatar
 
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From: DFW, TX, US
Default Re: What would cause the idle to fluctutate on my 90 CRX Dx?? (C00SI)

Have you tried changing out the fast idle valve?
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Old May 28, 2003 | 07:50 PM
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From: yea thats right i got a flowmaster and it owns you, Oklahoma, usa
Default Re: What would cause the idle to fluctutate on my 90 CRX Dx?? (HondaRue)

yea my friends b16 had a funky fast idle valve and it would jump from like 500 to 1200 and all kinds of crazy stuff
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Old May 28, 2003 | 08:31 PM
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civisaurusrex's Avatar
 
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Default Re: What would cause the idle to fluctutate on my 90 CRX Dx?? (smokinvtecCRX18)

my dx used to hunt between about 800 and 2k at idle. i had the upper plenum off to clear my strut tower brace. i ended up putting a breather on my iacv. then i unplugged the connector to the iacv, set the idle with it disconnected, and plugged it back in. it idled fine untill i spun a bearing.
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Old May 28, 2003 | 10:12 PM
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Default Re: What would cause the idle to fluctutate on my 90 CRX Dx?? (civisaurusrex)

might seam dumb.. but blead your coolant. hey, ive seen it do ****.
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Old May 31, 2003 | 07:32 AM
  #11  
Cam79's Avatar
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Default Re: What would cause the idle to fluctutate on my 90 CRX Dx?? (Built B16A)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Built B16A &raquo;</TD></TR><TR><TD CLASS="quote">might seam dumb.. but blead your coolant. hey, ive seen it do ****.</TD></TR></TABLE>
i should try that huh?
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Old May 31, 2003 | 07:37 AM
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Default Re: What would cause the idle to fluctutate on my 90 CRX Dx?? (C00SI)

Wouldn't hurt.
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Old Jun 7, 2003 | 09:04 PM
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Default Re: What would cause the idle to fluctutate on my 90 CRX Dx?? (fastcrxsi90)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fastcrxsi90 &raquo;</TD></TR><TR><TD CLASS="quote">did you check the eacv?</TD></TR></TABLE>

I just took mine off and cleaned it and it idles sooooo smooth now. I love honda-tech archives.
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Old Jun 7, 2003 | 09:50 PM
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From: a little rock in the pacific
Default Re: What would cause the idle to fluctutate on my 90 CRX Dx?? (C00SI)

my 90 std was doing the same thing, turned out my throttle cable was pinched (cable normally routes between #2 #3 spark plug wires , dpfi) well i had it between #1 #2, moved it back and wallah. I was going crazy looking for a vacumn leak
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