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Engine fault diagnosis: Engine obstacle troubleshooting skills and Okx app downloaddiagnostic methods sharing The engine is the heart of the vehicle, and its working state has an important impact on the performance and service life of the vehicle. Therefore, engine failure is one of the most worried problems for drivers. However, in the process of vehicle use, engine failure is an inevitable problem, and there is a certain probability of occurrence. In order to troubleshoot and solve engine faults in time, drivers need to master the skills and diagnostic methods of engine obstacles. I. The process of troubleshooting engine faults The process of troubleshooting engine faults is generally divided into the following steps: 1. Understanding vehicle usage: Understanding vehicle usage is the first step in engine troubleshooting. Users need to provide when the fault occurs.Room and condition description, including the vehicle's driving situation, speed, vehicle condition, temperature, rainfall and other information when the fault occurs. Two. Connecting computer testing equipment: Connecting computer testing equipment is an important step in engine diagnosis. Many vehicles have been equipped with OBD-II detection systems, which can diagnose engine problems through on-board computers. The fault code presented by the car manufacturer allows technicians to check and troubleshoot through computer commands. 3. Visual inspection: After detecting the engine fault code, a visual inspection of the engine is required, including checking whether the fault light is on, checking whether there are scattered parts or liquids in the engine area, etc. This step is mainly to understand the obvious signs of engine failure. Four. Functional inspection: Functional inspection is the main step of engine troubleshooting.It includes measurement and fault diagnosis of various environments, such as checking the voltage value of electrical components, checking the working status of sensors and airflow meters, etc. This step can further investigate the cause of engine failure. II. Common engine failures and their causes 1. Engine failure to start: This is the most likely condition of engine failure. Possible causes include problems with electrical components, ignition systems, fuel systems and the engine itself. The failure of electrical components will lead to insufficient battery voltage, and the failure of the ignition system may be caused by problems such as ignition plug, ignition coil, ignition sensor, etc. The failure of the fuel system may be due to the failure of the fuel pump, fuel filter, fuel injector and other components. The failure of the engine itself may include problems such as exhaust pipe, oxygen sensor, intake pipe, etc. Two.Black smoke from the engine: If the engine smokes black smoke, it means that the fuel combustion is incomplete or the proportion of oil and gas is uneven. In this case, it may be caused by insufficient air intake in the intake pipe system, problems with the ignition system or failure of the fuel injection device. Therefore, to troubleshoot this kind of fault, the status of the intake pipe, oxygen sensor, fuel injection device, air filter and other components should be checked first. 3. Engine fault light on: When the engine fault light is on, it means that the engine system has detected fault information. At this time, the driver should immediately park the vehicle in a safe zone and carry out troubleshooting. Common causes include sensor failure, engine control unit failure, oxygen sensor failure, etc. III. When does the vehicle need to be sent to the repair station for maintenance? If the following situations occur in the vehicle, the driver should consider sending the vehicle to the repair station for maintenance: 1.The engine has an abnormal sound 2. The engine can't start 3. The vehicle lacks power during driving, and the roar is obvious 4. Fuel consumption increases, and fuel consumption accelerates significantly 5. Found fuel leakage and cooling water leakage 6. The engine fault light is on frequently or on all the time 7. If the exhaust emissions are too high or the environmental pollution index reaches the upper limit, the driver can judge whether it can be solved by himself after troubleshooting. If not, he should consider sending the vehicle to the maintenance station for overhaul. IV. How to prevent engine failure? In order to avoid engine failure, the driver should pay attention to the following points: 1. Obey the maintenance cycle: Every car owner should follow the maintenance cycle of his vehicle and carry out regular maintenance. During the maintenance process, engine maintenance should be carried out, including replacing the oil, checking the condition of the oil pipeline, intake pipe and other parts.Two. Correct use of oil products: Use oil products that meet the requirements and pay attention to the quality and brand of oil products. This brand of oil products can usually meet the requirements of automobile manufacturers and reduce unnecessary risks. 3. Reasonable driving: The driver should drive the car reasonably, pay attention to the use of the accelerator and brake, abide by the traffic rules, and do not overload or speed. In a word, understanding the engine troubleshooting methods and prevention methods can avoid unnecessary losses and troubles. If you encounter an engine failure, immediately troubleshoot according to the fault code and troubleshooting steps to ensure timely troubleshooting and improve the use of the vehicle.

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