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The check engine light will illuminate with a code(s) directing which O2 sensor is bad.

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10y ago

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How do you know an oxygen sensor is bad?

Some signs that an oxygen sensor is bad include poor gas mileage, rough idling or stalling, a check engine light illuminating on the dashboard, or a failed emissions test. It is recommended to have the sensor tested by a mechanic to determine if it needs to be replaced.


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Signs of a bad oxygen sensor?

Low gas milege is an indication of a bad oxygen sensor and/or it's wiring. A lack of power, increasing vibration in car's floor and cabin area(s), high RPM's at highway speeds.


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Why would you replace the H2O sensor?

Replacing the oxygen sensor, also known as the O2 sensor, ensures that your vehicle's engine is running efficiently, improves fuel economy, and reduces harmful emissions. Signs that the oxygen sensor may need replacing include a decrease in gas mileage, rough idling, or a check engine light appearing on your dashboard.


How can you tell if oxygen sensor is bad?

It's simple. The engine will work on a much higher RPM or it will shut down itself without giving you any other signs.


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How can I determine if my camera sensor has been damaged?

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