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Re: 93 Honda Failed Nox, retest failed Nox and HC
Posted to Emissions Forum on 7/5/2005 1 Reply

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I'm not Rags but here is my answer to your question.

The switch test is ok, it is one test, but it isn't one I would hang my diagnosis on. I would use CODA and graph Lambda along with the O2 voltage... Login to read more.

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