What problems can occur if the engine's yellow warning light is left unaddressed?

[OKathryn]

The engine's yellow warning light being left unaddressed indicates a problem with the engine. Reasons for the engine's yellow warning light: There are many reasons why the engine fault light may illuminate, such as poor fuel quality, oxygen sensor failure, air flow sensor failure, spark plug carbon buildup, engine knocking, or coolant temperature sensor damage. How to handle the engine's yellow warning light: If the car cannot start, you should call for roadside assistance or have the car towed to the nearest repair shop for inspection and repair. If the car can operate normally without any additional abnormalities, you can try restarting the vehicle. Sometimes, the engine's yellow warning light may be a false alarm by the car's system and can be resolved simply by restarting.