What Does Downstream O2 Sensor Do

20 Oct 2023
posts
Forrest Kshlerin

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“Upstream” or “downstream” O2 sensor? Got this reading, and I was told

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What/why/how: downstream o2 sensors (and catalytic converters)

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What does a downstream o2 sensor do? (explained)

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Does downstream o2 sensor affect fueling and fe in petrol engines

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Does downstream o2 sensor actually adjust air fuel ratio?

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