Customs compliance scorecards

What is Customs compliance scorecardsthe fault of the engine light (car engine failure: what causes the engine light to turn on?) On the roads in China, more and more cars have engine lights on during driving. So, what's wrong with the engine light? Next, we will introduce the following four aspects in detail.I. What is an engine light? The engine light refers to a small lamp on the dashboard of the car. Under normal driving conditions, the engine light is turned off. However, when some faults occur in the process of the vehicle driving, the engine control module (ECU) will automatically turn on the red warning light to prompt the driver to stop for maintenance. Therefore, the engine light is usually a sensitive indicator to measure car faults. II. The reason why the engine light is on 1. Engine system failure. When the ECU detects a failure of the engine system, it will automatically turn on the engine light to remind the driver. For example, the failure of the cylinder block, cylinder head, crankshaft, connecting rod and other parts, and the breakage or loosening of the chain of the camshaft will cause the engine light to turn on. At this time, the driver should stop at the repair shop in time for maintenance. Two. Emission system failure The emission system of modern cars is complex and contains many sensors and components.Once the emission system fails, it is easy to cause the emission process to be unstable and increase air pollution. For example, the failure of the oxygen sensor, the blockage of the exhaust manifold, the damage of the catalytic converter and other faults will cause the engine light to turn on. 3. The failure of the electrical system of the vehicle The failure of the vehicle's electrical system will also cause the engine light to turn on. For example, unstable battery voltage or failure to carry out correct professional debugging after replacing the battery may cause the electrical system to fail. At this time, it is recommended that the driver go to the car repair point for repair and disposal in time. Four. ECM fault ECM (engine control module) is the soul of the car engine. It will collect all sensors, control and adjust the working state of the engine. Therefore, if the ECM itself fails, it will cause the whole engine to be abnormal, and the engine light will also turn on.In this case, the driver needs to go to the 4s store or repair shop to diagnose the ECM fault and replace it. III. How to avoid the engine light 1. Adhere to the prescribed car maintenance cycle and carry out regular car maintenance, such as replacing oil, air filter, oil filter, etc. This can ensure the good working condition of the engine and avoid failures caused by untimely maintenance of the car. Two. Follow the driving rules and pay attention to the driving method and environment, avoid sudden starting and stopping during driving, which can effectively avoid engine overheating failures caused by irregular operation. 3. Using high-quality fuel can effectively protect the engine and avoid engine failure caused by the use of low-quality fuel. IV. Conclusion: The engine light is an important indicator of car engine failure. If the driver encounters such problems while driving, he needs to stop and overhaul in time.To prevent the engine light from turning on, first of all, it is necessary to ensure the prescribed car maintenance cycle. At the same time, it is necessary to abide by the driving rules to avoid sudden starting and stopping behavior. At the same time, the use of high-quality fuel will also play a protective role on the car's engine.

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