Wide application of Electronic technology is it accuse of systematic structure more and more complicated to make, when breaking down, judge the trouble reason and find the fault part becoming more and more difficult.

• 电子技术的广泛应用使得发动机电控系统的结构越来越复杂,当发生故障时,判断故障发生原因以及发现故障的部位也相应的变得越来越困难。