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99 civic si(code 67)

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Old 10-02-2006, 04:50 PM
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Default 99 civic si(code 67)

i got the check engine light
its throwing code 67
can any body tell what is code 67
thanx all
Old 10-02-2006, 05:40 PM
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Default Re: 99 civic si(code 67) (Jarfal)

up
Old 10-02-2006, 05:47 PM
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P0420
67
Catalyst System Efficiency Below Threshold

It's a catalytic degredation code. Your car is probably running in limp or ultra-lean mode.
Old 10-02-2006, 05:51 PM
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Default Re: (Eran)

yes i fixed a new exhaust system with out the catalytic.
do i need to reinstall the catalytic
Old 10-02-2006, 05:53 PM
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Default Re: (Jarfal)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jarfal &raquo;</TD></TR><TR><TD CLASS="quote">yes i fixed a new exhaust system with out the catalytic.
do i need to reinstall the catalytic</TD></TR></TABLE>

Well, if you deleted the catalytic, and are still running two O2 sensors, you'll throw a cat degredation code, and you can do two things to fix it:

1) put in a cataltyic converter
2) fool the O2 sensor.

You can fool the O2 sensor one of two ways, either wire in a spoof or put in a "mechanical" spoof. Lemmie see if I can find a link to the mechanical spoof, they cost like $8 to make.
Old 10-02-2006, 05:57 PM
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http://cgi.ebay.com/ebaymotors...QQrdZ

expletive it, buy one for $9 on ebay
Old 10-02-2006, 06:03 PM
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Default Re: (Eran)

the problem the shipping will cose $100

ill get it
Old 10-02-2006, 06:18 PM
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Default Re: (Jarfal)

i had the same code. i swapped in a newer cat and it's good as gone.
Old 10-02-2006, 07:01 PM
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Default Re: (Kris.)

Conver to obd1 so you can tune down the road. Get a chipped p28 and a conversion harness.
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