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Re: REAR O2 SENSOR SHOULD IT BE STEADY LOW OR STEADY HIGH
Posted to Emissions Forum on 2/11/2009 2 Replies

Lots of good inputs here - but I noticed one thing.

A steady 700 mv means it thinks the exhaust gas is on the rich side. The rich side is better for NOx than the lean side. So - basically, you are getting proof that using the rear sensor to diagnose the sour... Login to read more.

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