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B38 engine is OKX Wallet logina turbocharged engine used by BMW cars. It adopts in-cylinder direct injection technology, which has strong power and efficient fuel economy. However, with the increase of mileage over time and mileage, the B38 engine will also slowly have some problems, such as decreased power, increased fuel consumption, etc. In order to solve these problems, we can improve the power and fuel efficiency of the B38 engine through the following methods.1. Replacing the high-performance air filter Air filter is one of the key parts for the engine to inhale air. If the filter is damaged or blocked, it will affect the engine intake and combustion efficiency, thus having a negative impact on power and fuel economy. Choosing a high-performance air filter can improve the air flow and purification effect of the engine, thus improving the combustion efficiency and power output. Two. Regular replacement of oil and filter oil and filter can keep the inside of the engine clean and lubricated, which is an important maintenance measure to maintain the normal operation of the engine. Regular replacement of oil and filter can ensure the removal of sediment and impurities inside the engine, while ensuring the viscosity and cleanliness of the oil. This can improve the vacuum and lubrication performance of the engine, thereby improving power and fuel efficiency. 3. The installation of a high-performance exhaust system is an important part of the engine exhaust gas.After long-term use, the original exhaust system may have been damaged or aging, thus affecting the emission effect and power output. Installing a better exhaust system can improve the emission effect and power output of the engine, and improve the sound of the engine. Four. Inspect and replace the fuel injector. The fuel injector directly affects the parts that fuel is injected into the cylinder. If the fuel injector is blocked or aged, it will affect the oil-gas mixing ratio and ignition time, resulting in a decrease in engine performance and increased fuel consumption. Checking and replacing the fuel injector is an important step to maintain the normal operation of the engine, which can improve the combustion efficiency and power output of the engine. 5. ECU re-adjustment ECU is an electronic control unit of the engine, which is responsible for controlling the ignition, fuel injection, intake, exhaust and other parameters of the engine. Through ECU re-adjustming, the engine canThe parameters are adjusted, including the amount of fuel injection, the timing of ignition, the intake oxygen content, etc., so that the engine runs more smoothly and efficiently. ECU re-tuning requires a professional technician or an experienced vehicle adjuster, and at the same time, it is necessary to pay attention to ensure the safety and reliability of the engine. In a word, the above methods can improve the power and fuel efficiency of the B38 engine, so that car owners can enjoy a better driving experience. However, when improving, car owners need to pay attention to choosing suitable accessories and service providers to ensure the safety and reliability of the engine. At the same time, regular maintenance and inspection are also key measures to maintain the normal operation of the engine, which can avoid hard injuries and failures of the engine and extend the service life of the engine.

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