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故障现象一辆2006款的桑塔纳3000轿车,在一次行驶途中发动机突然熄火,下车后,驾驶人闻到有烧糊的味道,再试着起动,发动机无法起动着机,于是将该车拖至修理厂检修。经该厂维修人员检查,发现发动机ECU已经损坏,三元催化转化器后端的氧传感器导线绝缘层已部分烧糊。修理工确信故障已经找到,于是就更换了氧传感器和发动机ECU,完成匹配后,发动机正常起动。但运行了几分钟后,发动机再次突然熄火,而且熄火后再也无法起动着机。
Symptoms A 2006 2006 Santana 3000 sedan, a sudden turn off the engine on a trip, get off, the driver smelled burning taste, and then try to start, the engine can not start the machine, so drag the car to Repair shop repair. After the factory maintenance staff inspection and found that the engine ECU has been damaged, three-way catalytic converter rear oxygen sensor wire insulation has been partially burning paste. The mechanic was sure the fault was found, so he replaced the oxygen sensor and engine ECU, and after the match was made, the engine started normally. However, after a few minutes of operation, the engine suddenly turns off again and the engine can no longer be started after the flameout.