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5 Common Issues that Cause the Check Engine Light to Illuminate

European Fine Car Repairs • Feb 12, 2024

An illuminated check engine light doesn’t automatically mean that your engine is on verge of complete failure. However, you should promptly get to the shop for diagnostics so the underlying issue can be identified and resolved before it gets worse. At European Fine Car Repairs, we provide expert European check engine light diagnostics and repair in the greater Boca Raton area. Here are five common check engine light triggers.


Faulty Oxygen Sensor

One of the most common causes of an illuminated check engine light is a malfunctioning oxygen sensor. These sensors play a crucial role in measuring the amount of oxygen in the exhaust gasses. When an oxygen sensor fails, it can lead to reduced fuel-efficiency and increased emissions. Ignoring this issue could ultimately cause catalytic converter trouble.


Faulty Catalytic Converter 

Your catalytic converter plays a crucial role in reducing harmful emissions by converting toxic gasses into less harmful substances. As it gets older, the catalytic converter can become clogged or fail, resulting in decreased performance and increased emissions. 


Failing Mass Airflow Sensor (MAF)

The mass airflow sensor measures the amount of air entering the engine and helps ensure the correct air-to-fuel ratio for combustion. A faulty MAF sensor can lead to poor fuel-efficiency, hesitations during acceleration, and even stalling. 


Ignition System Issues

Problems within the ignition system, such as a malfunctioning spark plug or ignition coil, can trigger the check engine light. If these components fail to ignite the fuel-air mixture in the engine cylinders properly, it can lead to misfires and reduced performance.


Loose/Missing/Damaged Gas Cap

Something as simple as a loose or damaged gas cap can potentially trigger the check engine light. The gas cap seals the fuel system and prevents fuel vapors from escaping. If the cap is loose, damaged, or missing, it can cause an imbalance in the fuel system, triggering the warning light. 


European Check Engine Light Repair in Boca Raton

For European auto repair in Boca Raton and the surrounding area, contact European Fine Car Repairs at 561-918-0133. Feel free to give us a call today to make an appointment!

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