What Causes the Engine Yellow Light to Illuminate While Driving?

[KingstonMarie]

Here are the reasons why the engine yellow light illuminates while driving: 1. The gasoline used may be of poor quality or there may be excessive engine carbon buildup, leading to poor combustion conditions in the engine, which can trigger the warning light. In such cases, it is important to promptly inspect the engine and seek maintenance at the nearest vehicle repair shop. 2. A malfunction in the engine's oxygen sensor often causes the engine warning light to illuminate yellow. This usually does not affect normal driving, but it is advisable to check the reason for the warning light after driving. 3. Issues such as clogged fuel injectors or carbon buildup on the intake valves can trigger the warning light. These problems are often related to the quality of gasoline used or dust entering the engine during maintenance.