EG800, the latest advanced multi-point injection system, has kinds of self-learning, self-adaptive and self-diagnosis functions. It adopt the signal of oxygen, MAP, speed, water/gas temperature, vacuum pressure and so on and track the Injection signal of original vehicle at the real time by using the source of original vehicle's sensor. It modifies dynamical the value of gas injection signal and make the gas injection signal and the original vehicle's injection be the same and modifies dynamical in order to make the vehicle more power/lower gas exhaust and lowest emission.