喷油器故障不拆卸检查法１．断缸法。断缸法是逐缸停止供油，检查各缸供油系统是否有故障的方法。逐个拧松高压油管的紧固螺母，小油门观察排烟和发动机工作情况变化。若排烟减少或不排烟，说明这缸有故障。２．听诊法。喷油嘴正常工作时，发出的声音是均匀而连续的“哒、... Injector failure does not disassemble the inspection method 1. Off cylinder method. Broken cylinder method is stopped by the cylinder oil supply, check each cylinder fuel supply system is faulty. Loosen one by one the high-pressure tubing fastening nut, small throttle to observe changes in smoke and engine work. If the smoke is reduced or not smoke, this cylinder is faulty. 2. Auscultation. Normal nozzle, the sound is uniform and continuous "da, ...