Reasons Your Check Engine Light May Turn On

March 20th, 2017 by

2016 Volkswagen Golf

If your check engine light is on, you need to make sure to stop by Larry Roesch Volkswagen ASAP, so we can diagnose the issue and find the right fix. A check engine light is not something to ignore or put off until later. It can mean serious problems with your engine, which if not addressed can lead to even more serious problems!

Check Engine Light

So what can cause your engine light to come on? There are really only a few things that will cause this error code to show up, and they’re usually fairly easy fixes. The top offenders are:

  • Oxygen Sensors: The oxygen sensor is what measures how much oxygen comes out of your exhaust system so it can adjust how much fuel is needed. Exhaust can clog it up and cause it to fail. If it’s not working it can reduce your fuel economy and performance, and damage spark plugs or your catalytic converter.
  • Loose Gas Cap: Sometimes it’s a simple answer. If your engine light comes on, check to make sure your gas cap is on snugly and undamaged.
  • Catalytic Converter: The catalytic converter helps reduce your emissions in exhaust and can reduce fuel economy and performance if it’s ignored. Usually a bad oxygen sensor, spark plugs, or other component causes a bad catalytic converter.
  • Mass Airflow Sensor: This system measures the amount of air that goes into the engine. If it isn’t working it should be replaced, or else it will damage your other parts—especially the components listed here—and can again cause poor performance.
  • Spark Plugs: If you need new spark plugs, you might experience poor performance or your engine might not function at all. Luckily this is an easy fix.

Visit Larry Roesch Volkswagen

If you’re experiencing a check engine light or another error code, you should stop by Larry Roesch Volkswagen so we can accurately diagnose and address the issue. Visit our dealership at 313 W. Grand Ave. in Bensenville, or schedule a service appointment online now.

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