What does it mean when the car engine light is on?
2 Answers
The reasons for the car engine light being on are: 1. Damaged oxygen sensor; 2. Damaged catalytic converter; 3. Missing or improperly closed fuel tank cap; 4. Damaged thermostat; 5. Aged ignition coil; 6. Faulty air flow sensor. The solution is to immediately visit a professional repair shop for maintenance or replacement. The car engine is the device that provides power to the vehicle, acting as the heart of the car, determining its power, fuel efficiency, stability, and environmental friendliness. Depending on the power source, car engines can be categorized into diesel engines, gasoline engines, electric vehicle motors, hybrid systems, etc.
The car engine light usually indicates that the onboard diagnostic system has detected a fault. This light is an important signal in modern vehicles. Once illuminated, it can be caused by various issues, such as a malfunctioning sensor in the engine, like an oxygen sensor or temperature sensor, leading to the computer misjudging; or an obstructed intake system or insufficient fuel supply, increasing fuel consumption; or even aging ignition coils or carbon buildup. Some situations may cause the car to shake while driving, and in severe cases, it may stall or exceed emission standards. It's best not to ignore it, as the chance of a small issue turning into a major one is not small. Promptly connect an onboard diagnostic tool to check the codes, identify the specific cause, and quickly fix it. Driving with this light on is not a major crisis, but delaying repairs may significantly increase maintenance costs.
