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95 Honda Odyssey Failed CO%

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Old 06-22-2012, 06:55 AM
Joel Weaver's Avatar
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Join Date: 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 06-22-2012, 07:56 AM
TexasHonda's Avatar
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Check PCV system carefully. This can cause excessive HC.

good luck
 
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Old 06-22-2012, 10:22 AM
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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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