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Another 02 Sensor Question
Posted to Emissions Forum on 1/21/2001 2 Replies

Greetings Emissions Gurus

I forgot a question in my other 02 sensor post. Sorry ;0(

On an OBD2 vehicle; I hear tell of folks recommending replacing the post-cat sensor as a matter of course when a pre-cat sensor is found faulty. That is; replacing the sens... Login to read more.

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