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Discussion Starter #1
initial test, main failure was carbon monoxide, supposed to be 15, was 100.62, new header with cat charcoal canister purge valve y7 basemap and stock injectors, new number is 15.24, what should i do?

I know it means i am running slightly rich, should new spark plugs help this? or rubbing alcohol. i am running out of things to replace.
 

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'97 crv
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Bust the inspector over the head and steal the sticker.

GL
 

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Discussion Starter #5
did new autolite spark plugs and put 16 oz of denatured alcohol and a few gallons of gas giving me a 1/4 tank and failed worse previous scores were hc 1.14 pass, co 15.24 fail, nox 1.55 pass

current scores hc 2.06 fail, co 51 fail, nox 1.33 pass

any ideas
 
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