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- - Smog help (https://www.hondacivicforum.com/forum/mechanical-problems-technical-chat-8/smog-help-61935/)

paradox_qu

Mar 5, 2008 03:31 PM

Smog help

I just went to get my car smoged and it failed at 15mph but it passed at 25mph. The reason I failed is because at 15mph the max NOx levels are 487 and my car did 691.

At 25mph the max NOx is 774 and my car did 594.

I am wondering what I can do from home to lower my NOx levels. I am already going to clean my EGR valve. Is there anything else you can think of that I can do from home.

Thanks
-Nick

paradox_qu

Mar 5, 2008 03:40 PM

RE: Smog help

Forgot to mention that my car is a 96 civic EX

GReddy_Civic

Mar 5, 2008 03:47 PM

RE: Smog help

maybe your catalytic converter needs replaced depending on if it was ever done. Youre car is 12 yrs old so it mgiht be tiem if it wasnt done

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