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Common Car Problems that Cause the Check Engine Light to Illuminate

European Autobahn • 7 July 2024

If your check engine light comes on, you don’t need to automatically assume that your car is on the verge of disaster. But you should quickly get to the shop for diagnostics so the issue can be identified and fixed before it gets worse. At European Autobahn, we provide expert check engine light diagnostics and repair for European cars in greater Miami. Here’s a look at five common reasons the check engine light comes on. 


Oxygen Sensor Failure

The oxygen sensor monitors the amount of unburned oxygen in the exhaust and helps manage the fuel mixture. A faulty oxygen sensor can lead to decreased fuel-efficiency and increased emissions. If your check engine light comes on and you notice a drop in gas mileage, a malfunctioning oxygen sensor might be the culprit. 


Catalytic Converter Issues

The catalytic converter is a crucial part of your vehicle’s emission system. It converts harmful gasses into less harmful emissions before they exit the exhaust system. A failing catalytic converter can cause a variety of issues, including reduced performance and increased emissions, triggering the check engine light. 


Faulty Spark Plugs or Wires

Spark plugs ignite the air/fuel mixture in the engine’s combustion chamber. Faulty spark plugs or wires can cause misfires, which will trigger the check engine light. You might also notice symptoms like rough idling, difficulty starting the engine, or poor acceleration. Regularly replacing spark plugs and wires as part of your vehicle’s maintenance schedule can prevent these issues.


Loose or Faulty Gas Cap

The gas cap seals the fuel system. If it’s loose or damaged, fuel may evaporate before the engine gets the chance to run on it. Though it might seem strange, a gas cap issue may trigger the check engine light. 


Mass Airflow Sensor Problems

The mass airflow sensor measures the amount of air entering the engine and helps the car’s computer determine the right amount of fuel to inject. A malfunctioning sensor can cause a rough idle, hesitation, or stalling.


European Auto Repair in Miami, FL

When you need European auto repair in Miami and the surrounding area, contact European Autobahn at (305) 262-9445. We can expertly handle your Euro car’s repair and maintenance needs. Feel free to give us a call today to make an appointment!

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