Other common causes include:
* Mass Airflow Sensor (MAF) issues: This sensor measures the air entering the engine. A dirty or faulty MAF sensor can throw off the air/fuel mixture.
* Evaporative Emission (EVAP) system problems: This system prevents fuel vapors from escaping into the atmosphere. Leaks in the system are common and will trigger the light.
* Spark plug or ignition coil problems: Misfires caused by worn-out spark plugs or failing ignition coils are another frequent cause.
* Catalytic converter issues: While less common as a *primary* cause of the light (often a symptom of something else failing first), a failing catalytic converter can eventually trigger the Check Engine Light.
It's crucial to have the code read from the vehicle's onboard diagnostic system (OBD-II) to pinpoint the exact problem. A simple OBD-II scanner available at most auto parts stores can provide this information. This avoids unnecessary parts replacements and helps ensure the proper repair.
