What Causes Your Check Engine Light to Come On?

Is your check engine light on and you are unsure as to why? It usually means something isn't working properly. Sometimes it's an easy fix while other times may indicate a more serious problem. Here are the most common reasons your check engine light is on:

  1. The oxygen sensor may need to be replaced - You car's O2 sensor is what measures the amount of unburned oxygen in the exhaust system. A defective sensor means it's not providing the right data to the computer and causes a decrease in gas mileage.
  2. Damaged or loose gas cap - Many people don't know this but the gas cap is important to your fuel system. A loose or cracked gas cap will leak out fuel vapors causing a reduction in gas mileage and increases emissions.
  3. The catalytic convertor needs to be replaced - The catalytic convertor helps to reduce exhaust gases. It takes carbon monoxide and converts it into carbon dioxide. A failing catalytic convertor will decrease your gas mileage and cause your car to run at higher temperatures.
  4. Mass Airflow Sensor needs to be replaced - This is the part that measures the amount of air entering your engine and determines how much fuel is needed to run your engine efficiently. If this part is faulty it will damage your spark plugs, O2 sensors, and the catalytic converter.
  5. Time to replace the spark plugs and wires - Spark plus are what ignites the air-fuel mixture to power your ending. Bad spark plugs misfire and you will feel a jolt in your car's acceleration.

If you have any questions or issues with your check engine light contact us today. Our team of technicians will provide friendly, quality service.

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