The automatic fuel injection machine must not unplug any sensor during the operation of the engine of the refueling vehicle. This will cause the ECU to record the artificial code and immediately turn on the fault light, which will cause anxiety during driving and easy maintenance. The personnel cannot judge the fault correctly and quickly, wasting unnecessary time. If you unintentionally unplug the sensor, the driver friend should cooperate with the maintenance personnel to troubleshoot the fault during maintenance. Never unplug any sensor plugs during the operation of the fuel truck engine. This will cause the ECU to record the artificial code and immediately turn on the fault light, which will cause anxiety when driving, and it is easy for the maintenance personnel to be unable to correct, Quickly judge the fault and waste unnecessary time. If you unintentionally unplug the sensor, the driver friend should cooperate with the maintenance personnel to troubleshoot the fault during maintenance. If you use the method of repeatedly stepping on the accelerator to increase the amount of fuel injection, it is invalid to start the engine, so it will make the engine difficult to start.
　　The fuel injector is an electronic control system that determines the fuel injection volume based on the parameters of the intake air volume, throttle opening, water temperature sensor, intake air temperature sensor and other sensors, so it is not necessary to repeatedly step on the normal carburetor engine when starting. Throttle method. If the refueling vehicle is hot and the starter motor cannot be started repeatedly, you should consider whether there is an oil spill fault. The method to eliminate oil spill is: step on the accelerator to the end, then start the engine to eliminate the oil spill in the cylinder, loosen the accelerator and try to start again. If it still does not start well, perform corresponding maintenance and troubleshooting. The polarity of the battery cannot be reversed to prevent damage to the EFI computer. The "0"-shaped sealing ring on the fuel injector is a disposable part and cannot be reused. Replace the fuel injector with a new one after disassembly and inspection to ensure good sealing. After confirming that the ignition system and the engine itself are not faulty, the faults of the fuel system electronic control system can be checked. Common faults are often caused by poor wiring, so ensure the clear and reliable contact of each connector and terminal. EFI computer is a high-quality machine with fewer faults. When you need to check, you must use special instruments. Generally, disassembly and repair are not allowed.