What should I do if the engine emission warning light comes on?

[HadleyMarie]

When the engine emission warning light comes on, it should be handled according to the specific situation. Here are the reasons and solutions for the engine emission warning light coming on: 1. Poor fuel quality: This causes incomplete combustion of the engine mixture. Solution: When choosing a gas station, try to avoid small gas stations. Also, avoid refueling immediately after the gas station changes its oil supply. After refueling, you can add some high-quality fuel additives to improve fuel quality. 2. Dirty throttle body. Solution: Clean the throttle body every 20,000 to 30,000 kilometers. 3. Carbon buildup on valves and fuel injectors. Solution: Clean the intake and fuel system every 30,000 to 40,000 kilometers.