What does it mean when the engine yellow light is displayed on the car dashboard?

[VonEmery]

Reasons for the engine yellow light displayed on the car dashboard: it is the engine fault light, and the yellow light indicates that the engine has a fault. Excessive carbon deposits: Poor-quality gasoline or excessive carbon deposits in the engine can lead to poor combustion, which may cause the fault light to illuminate. In such cases, it is generally necessary to promptly inspect the engine and seek maintenance at a nearby vehicle repair shop. Oxygen sensor malfunction: This type of fault usually causes the engine fault light to illuminate yellow, but it does not affect normal driving. After driving, remember to check the reason for the engine fault light.