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故障现象一辆2016年产福特锐界车,搭载Eco Boost2.7T发动机和自动变速器,行驶里程约为2万km,因发动机无法起动而进厂检修。故障诊断接车后试车验证故障现象,接通点火开关,尝试起动发动机,起动机运转有力,但发动机无法起动。连接IDS调取故障代码,读得与故障现象相关的故障代码如图1所示。根据故障代码的提示,读取燃油供给系统相关的数据流(图2),从数据流可以看出,发动机起动瞬间,转速
Symptoms A 2016 Ford Focus car powered by Eco Boost 2.7T engine and automatic transmission has a mileage of about 20000 km and is in for maintenance because the engine can not start. Fault diagnosis After the test car to verify the fault phenomenon, turn on the ignition switch, try to start the engine, the starter is running strong, but the engine can not start. Connection IDS recall fault code, read the fault code associated with the fault phenomenon shown in Figure 1. According to the fault code prompts, read the fuel supply system related data flow (Figure 2), can be seen from the data stream, the engine start moment, speed