Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

1991 accord (check engine light) code? i have searched and notting

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Old Jun 8, 2005 | 04:35 PM
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Default 1991 accord (check engine light) code? i have searched and notting

i get one long blink and 2 short ones ? any one know what code is it ? and what i might need to change?


Modified by BlazeTeck2000 at 8:48 PM 6/11/2005
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Old Jun 8, 2005 | 05:15 PM
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Default Re: 1991 accord (check engine light) code? i have searched and notting (BlazeTeck2000)

https://honda-tech.com/zerothread?id=797528

Check the basic guide.

The code is 12 which is a EGR lift sensor. My guess would be its either faulty wiring (unplugged/loose connections) or a clogged egr.
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Old Jun 8, 2005 | 08:09 PM
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Default Re: 1991 accord (.ken)

thanx for the link. but do you know where this is at ? does this affect the power of the car? do you know where this is located? thanx
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Old Jun 8, 2005 | 08:49 PM
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A clogged or malfunctioning EGR will not allow u to pass emissions. U will have an excessive amount of NOx. My 90 accord was the same. I forgot where its located its prob somwhere on the intake manifold. I dunno ill check on my 92 tomorrow to see where its at and get back to u on it.
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Old Jun 8, 2005 | 09:03 PM
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Default Re: 1991 accord (BlazeTeck2000)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlazeTeck2000 &raquo;</TD></TR><TR><TD CLASS="quote">thanx for the link. but do you know where this is at ? does this affect the power of the car? do you know where this is located? thanx</TD></TR></TABLE>

Basically the EGR is a Exhaust Gas Recirculating valve...it recirculates exhaust gases back into the manifold to be 'reburnt'. This lowers emissions and if it isn't functioning properly your car will not operate properly.



#17 is the egr

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Old Jun 11, 2005 | 05:55 PM
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Default Re: 1991 accord (.ken)

so i have to take all that apart to fix that? and all it needs is to be cleaned?
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Old Jun 11, 2005 | 06:17 PM
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Default Re: 1991 accord (BlazeTeck2000)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlazeTeck2000 &raquo;</TD></TR><TR><TD CLASS="quote">so i have to take all that apart to fix that? and all it needs is to be cleaned?</TD></TR></TABLE>

No its number 17 is the actual egr. Take it off and clean it up and you might also want to clean out the egr ports on the intake manifold while you're in there. Here is a link for that:

http://home.comcast.net/~em-engineering/T2T013.pdf

More info on the egr:
https://honda-tech.com/zerothread?id=1199662

I am not saying this IS the problem but it could be from what you're describing and code 12 is the egr. It could also be something simple like a vacuum line disconected as well.
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Old Jun 11, 2005 | 07:47 PM
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Default Re: 1991 accord (.ken)

i see what your saying. sometimes the car wont start. not all the time but sometimes. can this be causing that also/? i was thinking it was going to be the distrubutor.
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Old Jun 12, 2005 | 07:03 AM
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Default Re: 1991 accord (BlazeTeck2000)

my car wouldnt pass the emission tests because it failed the NOx part of the test
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Old Jun 12, 2005 | 03:18 PM
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Default Re: 1991 accord (BlazeTeck2000)

It could be your main relay if it doesnt start immediately.
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Old Jun 15, 2005 | 08:52 PM
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Default Re: 1991 accord (.ken)

Fixed The Problem. It Was A Tube That Went To The EGR. It Was Lose With A Screw In It. Why Is That? The Came Like This When I First Got The Car And The Guy Used To Race It. Would The Screw In The Tube Make It Faster Or Something Else?
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Old Jun 16, 2005 | 05:03 AM
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Default Re: 1991 accord (BlazeTeck2000)

Yes, it may be one or ten HP added but the EGR dilutes the air fuel mixture and robbs power, although very little. I believe that the EGR is not supposed to open when you have wide open throttle anyways but this may be OBD II technology???

Duane in Japan
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