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Re: 1991 Buick Century 3.3L NOX Failure
Posted to Emissions Forum on 1/24/2007 18 Replies

Looking again at your posted info:

I note that the lambda calculated for the idle mode testing is not 1.011 that I get from the gas readings you posted for this intrusive test, but is instead about 1.030 when calculated on the Aircare inspection report idle ... Login to read more.

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