Abstract: In order to solve the failure problem of Magotan B8L car does not catch fire, through the analysis, combined with engine system control logic and the auxiliary test of car special equipment, the fault diagnosis and troubleshooting of two main issues about the starter not running and the starter running but the engine cannot start were completed finally. During analysis and diagnosis, the basic idea of engine system fault diagnosis and its control logic was demonstrated and it has certain reference value for teachers and students of vocational colleges and maintenance personnels.

Key words: Engine; Magotan B8L; Diagnosis and troubleshooting of fault; Starter

摘要： 为了解决迈腾 B8L 轿车不着火的故障问题，通过分析，结合发动机系统控制逻辑，利 用汽车专用设备辅助测试，最终完成了起动机不运转和起动机运转但发动机无法启动两方面 问题的诊断与排除，诊断过程中，发动机系统故障诊断的基本思路及其控制逻辑，对职业院 校师生和维修人员具有一定的参考价值。

关键词: 发动机；迈腾 B8L；故障诊断与排除；起动机