Tag Archive: Oxygen Sensor

Sep 20

How to Replace a Downstream Oxygen Sensor (o2)

Plagued by the check engine light? Don’t know what to do next? Fear not, for you have come to the right place! Commonly, a check engine light will signify a sensor that needs to be replaced. In this case, it was the downstream (after the catalytic converter) o2 sensor. This sensor is easy to locate, …

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