上海大众新款普通型桑塔纳轿车、桑塔纳旅行车均搭载了BSA发动机,与传统的AFE型发动机拉线式节气门相比,BSA发动机采用了电子节气门,使得对节气门开度的控制更加精确,发动机燃油经济性大大改善,排放污染物有所减少,同时让系统的响应速度得到提高,并实现了发动机的怠速控制、巡行控制及车辆稳定性控制等的集成,简化了发动机控制系统的结构。发动机抖动是搭载BSA发动机的上海大众新款普通型桑塔纳轿车较为常见的故障之一。究其原因,因电子节气门工作失常而导致发动机抖动 Shanghai Volkswagen new ordinary Santana sedan, Santana wagon are equipped with BSA engine, compared with the traditional AFE engine pull-line throttle, the BSA engine with electronic throttle, making the control of the throttle opening more precise, the engine The fuel economy is greatly improved and pollutant emissions are reduced. At the same time, the response speed of the system is improved, and the integration of the engine idle speed control, cruise control and vehicle stability control is simplified, and the structure of the engine control system is simplified. Engine jitter is one of the more common failures of the new ordinary Santana, a Shanghai Volkswagen-equipped BSA engine. The reason, due to electronic throttle malfunction caused by engine jitter