What to Do When the Engine Malfunction Light Comes On?

[LeRebecca]

Solutions for the engine malfunction light coming on: 1. Clean the engine and use a high-quality fuel additive to clean the entire fuel system; 2. Use higher-octane gasoline, such as 95 or 97 octane, which usually resolves the issue of the engine malfunction light coming on; 3. Improve fuel quality. Reasons for the engine malfunction light coming on: 1. Poor gasoline quality can lead to incomplete combustion of the air-fuel mixture in the cylinders, resulting in carbon deposits; 2. Carbon buildup in the intake tract and piston tops can cause poor atomization and incomplete combustion; 3. During cold starts, a sharp drop in ambient temperature may trigger the issue due to the engine control unit's temperature correction; 4. Excessive engine mileage can weaken the performance of spark plugs.