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Re: Cat monitor runs before oxygen sensor ?
Posted to Emissions Forum on 11/2/2005 2 Replies

Hi Jerry,

We have run and analyzed hundreds of drive cycles and have seen this condition numberous times. The criteria to judge the O2 monitor is not the same as the O2 requirements for CAT operation. The O2 monitor has more items (response, voltage, etc) it... Login to read more.

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