Why Won't the Car Start When the Engine Malfunction Light Is On?

[StGrant]

When the car won't start and the engine malfunction light is on, the possible causes are: 1. Poor quality or substandard gasoline; 2. Oxygen sensor failure; 3. Airflow sensor malfunction; 4. Spark plug carbon buildup; 5. Engine knocking; 6. Damaged coolant temperature sensor; 7. Engine misfire. The car engine is the machine that provides power to the vehicle, acting as the heart of the car, influencing its performance, fuel efficiency, and environmental friendliness. Depending on the power source, car engines can be categorized into diesel engines, gasoline engines, electric vehicle motors, and hybrid systems. The engine serves as the power source for the car, with most automotive engines being thermal power devices, commonly referred to as heat engines.