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What are the Symptoms of a Failing Oxygen Sensor?

The oxygen sensor in your vehicle has the job of measuring oxygen levels in the exhaust gases that are emitted from the engine. This needs to be monitored because your car needs to run on a specific air to fuel ratio. It also helps ensure that the timing of the engine and fuel injection process is correct. An oxygen sensor failure isn't uncommon, and can happen with aging vehicles. It may be the reason that your vehicle won't pass emissions testing. When it does fail, it has a negative impact on the environment and your overall engine performance. 

The following are some the symptoms that can indicate a failing oxygen sensor: 

  • Check engine light is on
  • Poor fuel efficiency
  • Engine runs rough
  • Smell of rotten eggs
  • Engine idles and misfires

If you do happen to notice any of the signs above, don't hesitate to give us a call here at Stang Auto Tech. Oxygen sensors typically need to be replaced between every 60,000 miles and 90,000 miles. It may also need to be replaced if it is the cause of a failed emissions test. Our professionals will determine if your vehicle needs an oxygen sensor replacement and ensure that we restore your vehicle back to its best! 

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