电控燃油喷射系统的故障码诊断法

Failure Code Diagnosing Method of Electronical Controlled Fuel Injection System

电控自诊断系统一般通过监测电路或监测软件测定各个传感器的电信号值是否在规定范围内,来判断各个传感器是否工作正常和是否输出故障码。在进行电控燃油喷射系统维修时,应利用故障码提供的故障指示,分析故障码是否与故障现象相符,以便选择适当的诊断仪判断故障的具体部位。介绍了故障码种类、基本设置条件及故障诊断程序。

Electronic control self-diagnosis system generally judges if the various sensors is working correctly and it is needed to output failure codes according to electric information values measured by the electric current or monitoring software.In service of the electronic control fuel injection system,the failure indications provided by the failure codes should be used,then analyze if the failure codes are complied with the failure phantoms so as to select suitable diagnosis e-quipment to locate failure position.Failure code kinds,basic setting conditions and failure diagnosis procedures are intro-duced.