一辆别克Century(世纪)轿车(装用V6电控发动机),行驶时动力不足,加速不良,并且发动机怠速时严重抖动,急加速时进气管回火。首先清洗空气滤清器,更换火花塞和汽油滤清器,但故障依旧。又用专用设备将汽油喷射系统清洁剂输送给进气歧管,起动发动机,对进气歧管中的零部件进行自动清洗,未起作用。拆下喷油器,用专用设备清洗 A Buick Century car equipped with a V6 electric engine, lack of motivation during driving, poor acceleration, severe jerk at idle, and tempering of the trachea during aggressive acceleration. First clean the air filter, replace the spark plug and the gasoline filter, but the problem persists. Also with special equipment to gasoline injection system cleaner delivered to the intake manifold, start the engine, the intake manifold in the automatic cleaning of parts, does not work. Remove the injector, with special equipment cleaning