Why Does the Engine Yellow Light Come On?

[Steven]

Reasons for the engine yellow light coming on: 1. Poor gasoline quality. 2. Oxygen sensor malfunction. 3. Air flow sensor malfunction. 4. Spark plug carbon buildup. 5. Engine knocking. 6. Water temperature sensor damage. 7. Engine misfire. Methods to eliminate the engine yellow light: 1. Try starting and turning off the vehicle three times in a row, or disconnect the negative terminal of the engine battery, wait for 30 seconds, reconnect it, and then try starting again. After following the above methods, check if the engine warning light on the dashboard is still on. 2. Precautions: When the engine warning light on the dashboard comes on, it cannot be manually reset. Usually, you need to go to a 4S shop and use a fault diagnostic tool to troubleshoot before it can be eliminated.