一辆桑塔纳2000 GSi时代超人轿车(配置AJR发动机),累计行程1.5万km,出现怠速时排气管内有轻微的“膨膨”声,急加速时有很严重的“膨、膨”放炮声,缓慢加速至高速时行驶正常的现象。该车因此故障在当地定点修理厂进行了多次修理,曾更换了火花塞、高压线、点火线圈和空气流量传感器,并清洗了喷油器,故障均未能排除。我厂承修该车后,根据故障现象,怀疑点火系统故障导致该车加速不良,但车主反映,点火系统此前已检查过多次,该系统出现故障的可能性不大。用 A Santana 2000 GSi era Superman sedan (configured with AJR engine), a total of 15,000 km travel, there is a slight idling exhaust pipe “swelling ” sound, rapid acceleration when there is a very serious "Blasting sound, slowly accelerating to normal driving at high speed. As a result, the car repaired several times at a local fixed-point repair shop, replaced spark plugs, high-voltage lines, ignition coils and air flow sensors, cleaned the injectors and failed to eliminate the faults. I plant after the car repair, according to the fault phenomenon, suspected ignition system failure led to poor acceleration of the car, but the owner reflects the ignition system has been checked many times before the failure of the system is unlikely. use