In order to make your car’s fuel efficient and safe, it’s crucial to maintain it carefully with regular oil changes and tire rotations. Still, keeping tabs on any mechanical failure signs, such as your car’s O2 sensor, is vital. The oxygen sensor checks the amount of oxygen in the exhaust before it reaches the engine and can detect if there’s too much or too little. If the O2 sensor malfunctions, your vehicle will run poorly, so you should pay attention to these warning signs of a failing O2 sensor in your car.
What’s an O2 Sensor?
An oxygen sensor, also known as an O2 sensor, is essential to your car’s emissions control system. The sensor monitors the amount of oxygen in the exhaust stream and sends this information to the engine computer. The computer uses this information to adjust the air/fuel mixture to burn it more efficiently.
Active Check Engine Light
If your check engine light is illuminated, it could signal that your O2 sensor is starting to fail. The light comes on when the car’s computer detects a problem with the emission control system. While it could be something as simple as a loose gas cap, it could also indicate a more serious issue like a failing O2 sensor.
Reduced Fuel Efficiency
One of the first signs of a failing O2 sensor is reduced fuel efficiency. This is because the sensor is not accurately monitoring the oxygen levels in the exhaust, so the engine is not running as efficiently as it could be. So if you notice that you’re filling up your gas tank more often than usual, it’s worth getting your car checked out by a professional.
Excessive Exhaust
One of the most common and earliest signs of a failing O2 sensor is increased exhaust emissions. This is because the sensor can no longer measure the amount of oxygen in the exhaust accurately, so the engine compensates by adding more fuel. This can lead to poor fuel economy and may cause the engine to run rich, resulting in black smoke from the tailpipe. If you notice an increase in exhaust emissions, get your car to a mechanic as soon as possible.
Poor Engine Performance
Another common sign of a failing O2 sensor is poor engine performance. If your vehicle starts to hesitate or stall, it’s time to get your sensor checked out. In addition, you may that your car surges or runs rough. If you notice any of these issues, don’t wait to get your car checked out by a professional.
Your car’s O2 sensor is a vital component that will cause engine problems if it malfunctions. If you notice any signs of a faulty O2 sensor, see your trusted mechanic as soon as possible.