What to Do When the Engine Malfunction Light Comes On in a Car?

[StAnnie]

The methods to address the engine malfunction light in a car are: 1. Use fuel additives to clean the entire fuel system; 2. After cleaning the engine, use higher-grade gasoline; 3. Use high-quality fuel additives to improve the cleanliness level of the fuel; 4. Replace the catalytic converter. The reasons for the engine malfunction light coming on include: 1. Poor quality or substandard gasoline; 2. Oxygen sensor malfunction; 3. Air flow sensor malfunction; 4. Spark plug carbon buildup; 5. Engine knocking; 6. Engine misfire. The maintenance methods for a car engine are: 1. Use high-quality engine oil; 2. Regularly clean the radiator scale; 3. Maintain a reasonable engine speed; 4. Use qualified coolant.