Check Engine Light Diagnostics

Why is my Check Engine Light on?

There are a number of reasons why your check engine light will turn on, so it is important to bring your vehicle in to get a diagnostic test right away.

Today’s vehicles are equipped with highly sophisticated electronic engine control systems. Your vehicle’s on-board computer receives information from a network of sensors and switches that tells your ignition, fuel and emission control systems what to do. The check engine light is a signal that the on-board diagnostics system has detected a malfunction. Here are just a few common reasons:

  • Failing catalytic converter
  • Failing mass airflow sensor
  • Faulty oxygen sensor
  • Loose or damaged gas cap
  • Worn spark plugs

Check Engine Light on?

Learn what the on-board diagnostics mean for your vehicle and how we can help.​

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