The check engine light is your vehicle’s way of telling you that something isn’t right under the hood. When this warning light illuminates, it’s best to visit the shop for diagnostics ASAP. This way, the issue can be identified and resolved before it gets worse. At Dr. Euromaster Auto Repair, we provide expert European check engine light diagnostics and repair in the greater Austin, TX area. Here’s a look at five common reasons the check engine light turns on. 

Oxygen Sensor Failure

Your car’s oxygen sensor monitors the amount of unburned oxygen in the exhaust and sends this information to the vehicle’s computer to adjust the air-fuel mixture. If the sensor is faulty, the engine might run too rich or too lean, affecting fuel-efficiency and increasing emissions. 

Catalytic Converter Issues

The catalytic converter is a crucial part of your car’s exhaust system, reducing harmful emissions. If it’s not working correctly, there’s a good chance the check engine light will come on. Signs of a bad catalytic converter include poor acceleration and a smell similar to rotten eggs.

Mass Airflow Sensor Malfunction

The mass airflow sensor (MAF) measures the amount of air entering the engine and helps the car’s computer determine the correct amount of fuel to inject. If the MAF sensor is faulty, it can lead to poor fuel-economy, rough idling, and even stalling. 

Spark Plug or Ignition Coil Problems

Spark plugs ignite the air-fuel mixture in the engine’s cylinders, while ignition coils supply the spark plugs with the necessary voltage. If either the spark plugs or ignition coils are faulty, the engine may misfire, resulting in poor performance.

Loose or Faulty Gas Cap

Something as simple as a loose or damaged gas cap may trigger the check engine light. The gas cap seals the fuel system. If it’s loose/damaged, fuel might evaporate before it is directed to your engine.

European Check Engine Light Repair in Austin, TX

When you need European auto repair in Austin and the surrounding area, contact Dr. Euromaster Auto Repair at 512-360-8889. Feel free to give us a call to make an appointment!