故障现象一辆2009年产广汽本田雅阁2.4 L车,行驶里程约为18万km,因间歇性地出现发动机起动困难的故障现象而进厂检修。故障诊断接车后,试车验证故障。接通点火开关,起动发动机,发动机顺利起动。经询问驾驶人得知,该车间歇性起动困难的故障多发生在冷车起动时,故障发生时需反复起动多次,发动机才能起动着机,着机后车辆行驶正常。连接HDS调取故障代码,得到2个故障代码(图1)。本 Fault phenomenon A 2009 Guangzhou Automobile Honda Accord 2.4 L car, driving mileage of about 180,000 km, due to the intermittent occurrence of the engine starting difficulty phenomenon into the plant overhaul. Troubleshooting After the car, test to verify the fault. Turn the ignition switch, start the engine, the engine started smoothly. Upon inquiry, the driver learned that the car intermittently started difficult failures occurred in the cold car start, the failure occurred repeatedly to be started several times, the engine can start the machine, the machine after the normal driving. Connect the HDS to retrieve the fault code, get 2 fault codes (Figure 1). this