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Engine idling problem: how to solve it?How to structure long-term contracts The engine idling problem is a common problem in vehicle maintenance. When driving or stopping at low speed, the engine speed will become unstable or the engine will shut down. This problem may be caused by a variety of reasons, including electrical, mechanical, electronic and fuel system problems. In this article, we will discuss the engine idling problem and how to solve it. The cause of the engine idling problem. It is very important to understand the cause of the engine idling problem before solving it. The following are some reasons that may cause engine idling problems: 1. Air Flow Sensor (MAF) MAF is a sensor that measures air flow. When abnormal air flow is found, it will send a signal to the vehicle's computer and adjust the gas flow according to its reading.If the MAF reading is incorrect or malfunctions, it may lead to unstable idling or even vehicle shutdown. Two. Throttle position sensor (TPS) TPS is a sensor that measures the opening of the throttle valve. The sensor tells the vehicle's computer how much fuel should be provided to the engine by sending a signal. If there is a problem with TPS, the throttle valve may not work properly, resulting in engine idling problems. 3. The air-fuel ratio problem The air-fuel ratio is the ratio between air and fuel. If the air-fuel ratio of the car is incorrect, the engine may be unstable or shut down. Changing the air-fuel ratio may be caused by a variety of reasons, such as oil pumps, cylinder walls, combustion chamber walls, curved intake valves and other problematic fuel systems. Four. Fuel pressure If the fuel pressure is insufficient or unstable, the engine may be unstable and cause idling problems.The reason for the fuel pressure problem may be the blockage of the fuel injector caused by the carbon accumulation on the wall of the combustion chamber. How to solve the engine idling problem? After understanding the cause of the engine idling problem, the following are several ways to deal with it: 1. Replacing MAF or TPS sensors. If MAF or TPS fails, replacing them can solve the problem. If you want to replace MAF or TPS, you should first test the problem of the sensor. If it is confirmed that there is a problem, you can purchase these sensors separately and replace them. It is best to find professional and technical personnel when repairing the car. Two. Cleaning the throttle valve. If carbon accumulation is found in the throttle valve, you can consider cleaning it. After cleaning, it can solve the problem of poor fuel inlet. Because the car has been used for a long time, sometimes the air intake and fuel injection pre-made dust and carbon accumulation cause these problems. 3. Replace the air filterIf the air filter of the vehicle is blocked, the air flow may decrease, resulting in engine idling. If you encounter the problem of replacing the air filter, it is recommended to update the official brand filter, and try not to choose low-priced filters that have not been tested on the market. Four. Check the fuel pressure. If you find that the fuel pressure is insufficient or unstable, cleaning the blocked oil pump or replacing the bad oil pump is one of the ways to deal with it. The inspection may need to be replaced together with the fuel filter to check whether it can be solved. If there is a problem with fuel pressure, you also need to find professional and technical personnel to deal with it, and don't DIY. In summary, after identifying the engine idling problem, many problems can be diagnosed by reading the fault code and performing other simple tests. If you are repairing your own vehicle, please be careful, because the vehicle is very complex and improper operation may lead to more serious problems.If you need professionals to help solve the problem, be sure to choose certified and trained experts. Stay vigilant. During maintenance work, please check your safety to avoid accidents.

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