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Re: is 3500ppm nox precat on a 97 cavalier too high?
Posted to Emissions Forum on 4/9/2004 2 Replies

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I will already tell ya. You will find that engine out NOx is largely unaffected cold start vs. full temp.

Anyhow, IF I desire precat numbers I hose the cat in some cases, I also will use other metho... Login to read more.

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