What Are the Symptoms of a Faulty Oxygen Sensor?

1 Answers
DiAshlyn
07/29/25 6:33pm
Oxygen sensor failure manifests the following symptoms: 1. For the front oxygen sensor itself, prolonged exposure to carbon-rich environments leads to aging and poisoning. Aging refers to reduced efficiency due to high-temperature degradation, while poisoning occurs when carbon monoxide accumulation causes sensor failure. 2. Physical damage such as burnt internal resistance wires or detached sensor wiring can also render the front oxygen sensor inoperative. 3. Vehicle performance indicators include: noticeable power loss, difficult acceleration, unstable idle operation, and excessive emission pollutants - all potential signs of front oxygen sensor malfunction.
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