2012年五菱荣光无规律不好启动
<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; text-align: justify; line-height: 1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">故障</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">现象</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">：</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">2012年</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">五菱荣</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">光，搭载B12发动机</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">。有时经过颠簸地段</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">时会熄火</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">，车辆无法启动，故障发生时，晃动车身，可以启动</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">。</span></p><p style="box-sizing: border-box; margin-bottom: 20px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; outline: 0px !important;"></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; text-align: justify; line-height: 1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; display: inline-block; height: 1em;"></span></p><p style="box-sizing: border-box; margin-bottom: 20px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; outline: 0px !important;"></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; text-align: justify; line-height: 1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">故障验证：接车后，根据客户描述，维修技师对客户所说的故障进行验证，由于是无规律故障</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">，我们在外面进行路试，确实如客户所说，有时经过颠簸路面</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">会熄火，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">无法启动，有时正常，而且故障发生时，仪表故障灯没有点亮</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">，其它用电器能正常工作，而且启动时能听到</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">继电器吸合马达工作的声音</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">。</span></p><p style="box-sizing: border-box; margin-bottom: 20px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; outline: 0px !important;"></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; text-align: justify; line-height: 1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; display: inline-block; height: 1em;"></span></p><p style="box-sizing: border-box; margin-bottom: 20px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; outline: 0px !important;"></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">维修过程：我们把车</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">拖</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">回店里，用解码器对发动机系统进行</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">检测</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">无故障码。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">这时我们要先考虑影响发动机正常启动的原因有</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">哪些</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">我们都知道，发动机</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">正常</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">启动的三要素分别是</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">：</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">1</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">、</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">适当的空燃比</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">；</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">2</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">、适当的</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">点火</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">时刻和能量；</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">3、足够的缸压</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">也就是我们说的有油</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">、</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">有火</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">、</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">有缸压</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">如果缺少一个或者达不到要求，发动机就无法正常启动。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">首先我对保险进行检测，没有发现损坏，并且钥匙打开电源到</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">ON</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">时，能听到油泵工作的声音</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">，又多试了几次，都可以听到油泵工作的声音，车子无法</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">启动，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">这时可以排除油压</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">接着对喷油</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">嘴用万用表进行测量，1号</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">针脚</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">12V，2号</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">针脚</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">12V，喷油</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">嘴可以</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">暂时排除。因为是偶</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">发性故障，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">缸压的</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">可以性</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">也不大，还是在电路上容易出现问题。车子在</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">启动时，发动机电脑需要采集</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">正确的</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">凸轮轴位置器和曲轴位置传感器的信号</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">来</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">确定</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">喷油时间和点火时间，技师首先对曲轴位置传感器进行测量</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">，拔掉</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">插头1号</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">针脚</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">1.6V</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">，2号</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">针脚</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">4.9V，3号</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">针脚</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">为0V</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">。通过所得电压我们可以</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">确定</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">曲轴</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">位置传感器为霍尔</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">传感器，并且1号</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">针脚</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">电压明显不对（正常值应为12V）</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">我们开始查找电路图</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;"><img alt="图片-2012年五菱荣光无规律不好启动-蛙趣网" fetchpriority="high" decoding="async" width="528" height="400" class="wp-image-670 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232518165-20250305232518474-image1-26ln590t66rn583b528w400h.png" imgbox-index="0" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"></span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;"> </span></p><p style="box-sizing: border-box; margin-bottom: 20px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; outline: 0px !important;"></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; text-align: justify; line-height: 1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">如图所示，曲轴位置传感器的电源是受主继电器所控制</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">，同时控制喷油嘴，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">碳罐控制阀</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">，前氧传感器</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">等。</span></p><p style="box-sizing: border-box; margin-bottom: 20px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; outline: 0px !important;"></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">在前面我们对喷油</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">嘴进行</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">过验证，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">电压正常，并且同时出现问题的可能性不大，最大的可能性还是出在曲轴位置传感器1号</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">针脚</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">和供电节点之间电路出现断路，短路。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">由于图中没有标明节点所在的位置，我们采取了从曲轴位置传感器往供电节点进行剥线查找，最终在节气门下方找到线路的断点，还有几根铜丝相连，这也就</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">解释了为什么测量时为什么会有1.6V的电压。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;"><img alt="图片-2012年五菱荣光无规律不好启动-蛙趣网" decoding="async" width="554" height="277" class="wp-image-671 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232529358-20250305232529466-image2-554w277h.png" imgbox-index="1" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"></span></p><p style="box-sizing: border-box; margin-bottom: 20px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; outline: 0px !important;"></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; display: inline-block; height: 1em;"></span></p><p style="box-sizing: border-box; margin-bottom: 20px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; outline: 0px !important;"></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">故障排除：</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">对线路修复过后，在颠簸路面试车，故障解决</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">。</span></p><p style="box-sizing: border-box; margin-bottom: 20px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; outline: 0px !important;"></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; display: inline-block; height: 1em;"></span></p><p style="box-sizing: border-box; margin-bottom: 20px; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; outline: 0px !important;"></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; text-align: justify; line-height: 1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">故障总结：在维修中，我们经常会遇到这种情况，首先</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">我们要清楚启动时条件有</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">哪些</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">，进而</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">对它的工作条件进行一个</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">检查，来快速的锁定故障点</span> <span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">，减少维修时间</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;">。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 12pt;"> </span></p><p></p>
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