What Causes the Engine Malfunction Yellow Light to Stay On?
1 Answers
When the engine malfunction yellow light stays on, it indicates a fault in the car's engine. The specific reasons are as follows: 1. Issues with fuel combustion or excessive carbon buildup in the engine may lead to poor combustion conditions, causing the yellow light to stay on. In this case, promptly inspect the engine and take the vehicle to a repair shop for maintenance. 2. A faulty oxygen sensor in the engine can trigger the yellow warning light. This condition does not affect the normal operation of the car, and simply replacing the oxygen sensor during free time will resolve the issue. 3. Clogged fuel injectors or intake valves due to carbon buildup may trigger the warning light. This could be caused by dust entering the engine or poor fuel quality, leading to engine malfunctions and the illumination of the yellow light.