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What does the engine light means on a 2006 Mazda 6?

The engine light on a 2006 Mazda 6 is an indicator light that a diagnostic trouble code (DTC) has been set in the engine control module (ECM). This means the ECM has detected a potential issue with the engine or emission control system that requires attention. Here are some common reasons why the engine light may come on:

Check Engine Soon

* Emissions Issues: The engine light can come when your car's emissions system has a problem. Faulty sensors, catalytic converter issues, or leaks in the exhaust system can all cause the engine light to come on.

* Misfires: Engine misfires can also cause the engine light to come on. This can be caused by faulty spark plugs, ignition coils, or fuel injectors.

* O2 Sensor Problems: The engine light can also come on when the oxygen sensor goes bad. This sensor measures the amount of oxygen in the exhaust gases, helping to regulate the fuel-to-air ratio in your car's engine.

* Catalytic Converter Issues: Catalytic converter problems can also illuminate the Check Engine Light. This is because a bad catalytic converter can cause the car's emissions system to malfunction.

* Defective Fuel System Components: Faulty or damaged fuel system components, such as a blocked fuel filter or bad fuel pump, can cause problems and possibly trigger the engine light.

If the engine light is on, it's important to have your car diagnosed as soon as possible to identify the cause of the problem and have it repaired or fixed if needed.