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International Automotive Technicians Network
Re: is 3500ppm nox precat on a 97 cavalier too high?
Posted to Emissions Forum on 4/15/2004

No...you are right of course...specifics must be factored in and we all SHOULD know better...and thermal shock wouldnt happen in NORMAL circumstances or when PROPER MAINTANENCE is done by the owner or PROPER DIAGNOSTIC LOGIC is used by a tech...

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