桑塔纳3000发动机电控系统故障的诊断与检修毕业论文（可编辑）.docVIP

桑塔纳3000发动机电控系统故障的诊断与检修毕业论文 Abstract With the development of electronic control fuel injection technology and repair the understanding level of the continuous improvement, with the electronic control fuel injection engine automobile repair in the modern car, unit fault diagnosis instrument for engine electronic control ECU were detected, and maintenance according to the fault code ECU storage, most can cause and the site of marshaling failure may occur of, will bring great convenience to the repair work. However, in the automotive repair, if only by the fault code to find fault, often can appear mistake in judgment. In fact, the fault code is only a ECU accredited yes or no definition of conclusion, not necessarily the fault position, the car really so, in the repair of the car should be comprehensive analysis, combined with the automobile fault phenomenon to find the fault positionThis article first introduces Santana 3000 engine control system composition and working principle of the system, and then introduces the mechanism of Santana 3000 engine control system fault and fault. Then explain the diagnosis method of each fault and diagnosis process. Finally, a fault case to fault diagnosis about the specific processKeywords: Electronic controlled engine; fault diagnosis; Santana 3000目 录 摘 要 I Abstract II 第一章桑塔纳3000的绪论 1 1.1简介 1 第二章桑塔纳3000汽车发动机电控系统的组成及工作原理 3 2.1汽油机电控燃油喷射系统的组成和工作原理 3 2.2电控点火系统的组成与工作原理 4 2.3电控进、排气系统的组成和作用 4 2.4电控辅助控制系统 6 第三章桑塔纳3000发动机电控系统的故障及产生机理 8 3.1发动机不能发动 8 3.2发动机怠速不良故障 8 3.3混合气稀故障 9 3.4加速不良故障 9 3.5发动机异响故障 9 第四章桑塔纳3000发动机电控系统的故障诊断 13 4.1发动机不能发动诊断 13 4.2发动机怠速不良故障诊断 15 4.3混合气稀故障诊断 18 4.4加速不良故障诊断 19 4.5发动机异响的故障诊断 20 第五章检测与维修时的注意事项 22 5.1电控发动机维修要点 22 5.2电控燃油系统检查要点 22 第六章故障案例分析 24 6.1故障现象 24 6.2故障诊断与排除 24 6.3故障维修小结 25 第七章总结与展望 26 7.1总结 26 7.2展望 26 致谢 28 参考文献 29 第一章桑塔纳3000的绪论 大众出品的桑塔纳3000虽然外观比较朴实,内饰较老,没有什么亮点,整体表现中规中矩。但车内空间非常宽敞,由于保有量较大,桑塔纳3000的日常维修保养费用较低,是家用或是一般商用的不错选择。 1.1简介 桑塔纳品牌在国内已深入人心,行销全国十几年,无奈商场如战场,现今的汽车市场已是硝烟四起。桑塔纳2000在2004年1月31日已经停产,替代车型超越者桑塔纳3