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95 Honda Odyssey Failed CO%

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Old Jun 22, 2012 | 06:55 AM
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Joel Weaver's Avatar
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Joined: Jun 2012
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Question 95 Honda Odyssey Failed CO%
I replaced t belt,all oil seals,spark plugs,fuel pres. reg., and car runs perfect with no check engine light problem or smoke. CO% is 5x the limit on emissions test. I have checked all sensors and plugs are burning light gray. Please give me possible solutions. thank you,Stumped JOEL
 
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Old Jun 22, 2012 | 07:56 AM
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TexasHonda's Avatar
Super Moderator : And A Texan
Joined: Feb 2007
Posts: 9,652
From: Katy, TX
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Check PCV system carefully. This can cause excessive HC.

good luck
 
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Old Jun 22, 2012 | 10:22 AM
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Roader's Avatar
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Joined: Jul 2011
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From: Denver
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Originally Posted by Joel Weaver
I have checked all sensors...
What's the O2 sensor output voltage?
 
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