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How to interpret the fault code of the car engine?Arena Plus login The car engine is the core part of the whole vehicle. Whether it is rear-wheel drive, front-wheel drive or four-wheel drive models, the engine needs to exert power driving force to make the vehicle run normally. However, as the usage time increases, the engine may fail, which may be a headache for car owners. In order to solve the engine failure problem in time, car owners can find the cause of the failure by interpreting the engine failure code. What is the engine fault code? The engine fault code is the digital code automatically stored by the automobile computer system after the fault is found.These codes can be used to help technicians or car owners find out the location and cause of engine failure. The fault code can be read through the on-board computer system, and each fault code represents a possible engine problem. How to read the fault code? There are usually two ways to read the engine fault code: through scanning tools or manual reading. The first way is to use the fault code scanning tool. These tools can be connected to the engine control module through the OBD-II interface to read the fault code and display it on the tool screen. This method is relatively simple, fast and accurate. The second way is manual reading. For some older cars, there may be no OBD-II interface, and the fault code needs to be read manually. The method of manual reading is to generate flashing letters on the fault code reading port on the vehicle.Number (each flashing represents a number), and then the specific fault code is read through manual matching. This method is not as practical as the scanning tool, but it can be used for older cars. Where is the fault code stored? The fault code of each vehicle is stored in the on-board computer system. The specific location of the fault code storage can be read through the scanning tool through the OBD-II interface connected to the car. Some newer cars can also be directly connected to the car's Wi-Fi or Bluetooth network to download the fault code. How to interpret the fault code? The interpretation of the fault code may require a professional technician to diagnose. However, for some relatively simple fault codes, the car owner can also judge the cause of the fault according to his own experience and the explanation of the fault code. The fault code usually consists of a letter and one or several numbers. Letters represent the classification of engine system failures, and numbers represent the specific location of engine system failures.The following are several common fault codes and their explanations: P0171: The system is too barren and the car is consuming too much fuel. P0300: There is a "random multi-cylinder fire" in the engine, which may cause the vehicle to shake or explode. P0420: There is a failure problem in the exhaust system, which will lead to the emission exceeding the standard and the decline in the operation quality of the machine. P0507: There is a problem with the engine idling control system, which may cause the engine to overflow or slow down after stopping. In summary, by reading the engine fault code, the owner can find and solve engine problems in time. However, it should be noted that interpreting the fault code requires certain experience and car knowledge. For some non-professionals, diagnosing and solving engine failures may pose risks, and it is recommended to contact the technician as soon as possible.

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