本田思铭事故车油耗高发动机抖动

admin 发表于 2025-12-14 21:50:08

<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; text-align: justify; line-height: 1; font-size: 10.5pt; outline: 0px !important;">车辆信息：<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; text-align: justify; line-height: 1; font-size: 10.5pt; text-indent: 24pt; outline: 0px !important;">生产日期：2014年7月，发动机排量：1.8L，行驶公里数：53200公里。<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; text-align: justify; line-height: 1; font-size: 10.5pt; outline: 0px !important;">故障现象：<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; text-align: justify; line-height: 1; font-size: 10.5pt; outline: 0px !important;">客户描述：发动机故障灯点亮，发动机发抖，怠速不稳，油耗高。<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; line-height: 1; font-size: 10.5pt; text-indent: 24pt; outline: 0px !important;">故障验证：接车后根据客户描述 ，我们的维修技术人员对车辆进行故障检查，看到仪表发动机故障灯亮起，打开发动机盖看见发动机抖动怠速不稳，跟客户描述的一样。<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; text-align: justify; line-height: 1; font-size: 10.5pt; outline: 0px !important;">维修过程：<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; line-height: 1; font-size: 10.5pt; text-indent: 24pt; outline: 0px !important;">我们的技术人员拿来诊断电脑对车辆进行故障码读取，故障码显示PO171燃油系统过稀（如图所示）：<img decoding="async" class="wp-image-774 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233352633-20250305233352132-%E5%9B%BE%E7%89%87-4-550b553w535h.jpeg" alt="故障" 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;">混合气过稀的可能性有：燃油压力过低、进气系统漏气、空气流量传感器故障、喷油器积碳过多、进气压力信号不正确等等。<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; line-height: 1; font-size: 10.5pt; text-indent: 24pt; outline: 0px !important;">对发动机数据流进行读取，发动机转数744rpm，MAP传感器（进气压力传感器）43Kpa，MAF传感器（空气流量传感器）2.2g/s，理论空燃比24.7：1，氧传感器28%。（如图所示）:<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; line-height: 1; font-size: 10.5pt; outline: 0px !important;"><img alt="图片-本田思铭事故车油耗高发动机抖动-蛙趣网" fetchpriority="high" decoding="async" width="554" height="397" class="wp-image-775 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233353144-20250305233353126-11-554w397h.jpg" 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;"><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; line-height: 1; font-size: 10.5pt; outline: 0px !important;"><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; line-height: 1; font-size: 10.5pt; outline: 0px !important;"><img alt="图片-本田思铭事故车油耗高发动机抖动-蛙趣网" decoding="async" width="554" height="481" class="wp-image-776 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233354637-20250305233354899-22-554w481h.jpg" imgbox-index="2" 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;"><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; text-align: justify; line-height: 1; font-size: 10.5pt; text-indent: 24pt; outline: 0px !important;">明显发现这些数据都不在正常范围内，进气压力传感器偏高，进气歧管真空度偏低，怠速正常真空度57Kpa—71Kpa（大气压100Kpa=绝对压力43Kpa+真空度57Kpa）。空气流量传感器偏低，怠速正常在3g/s左右。理论空燃比偏高，怠速正常理论空燃比14.7：1。氧传感器修正系数一直加浓，怠速正常在正负10%左右。<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; text-align: center; line-height: 1; font-size: 10.5pt; text-indent: 24pt; outline: 0px !important;">根据以上信息初步怀疑进气系统节气门后方漏气，使用设备烟雾检测仪，来检测进气系统漏气故障点。拔掉进气歧管上的刹车真空管，将设备烟雾检测仪接到刹车真空管路上进气歧管这端，把节气门堵死，开始放浓烟，过几分钟看到进气歧管左下方有烟冒出来（如图所示）：        <img decoding="async" class="wp-image-777 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233355725-20250305233355577-%E5%9B%BE%E7%89%87-11-399w351h.png" alt="微信图片_20181023203321" imgbox-index="3" 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;"><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; line-height: 1; font-size: 10.5pt; text-indent: 24pt; outline: 0px !important;">我们将故障锁定在进气歧管，拆下进气歧管发现左方向有被撞过的痕迹，明显看到进气歧管破损。（如图所示）<img decoding="async" class="wp-image-778 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233357948-20250305233357611-%E5%9B%BE%E7%89%87-7-333w445h.jpeg" alt="微信图片_20181023193345" imgbox-index="4" 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;"><img decoding="async" class="wp-image-779 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233358169-20250305233358660-%E5%9B%BE%E7%89%87-8-413w551h.jpeg" alt="微信图片_20181023193351" imgbox-index="5" 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;">，进气歧管在发动机后方，拆下来费了好长时间，有点难拆。<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; line-height: 1; font-size: 10.5pt; outline: 0px !important;">解决方案：<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; line-height: 1; font-size: 10.5pt; text-indent: 24pt; outline: 0px !important;">更换进气进气歧管总成，顺便让车主进气道油路清洗，装好新的进气歧管试车故障排除，进气压力，理论空燃比一切正常了（如图所示):<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; line-height: 1; font-size: 10.5pt; outline: 0px !important;"><img alt="图片-本田思铭事故车油耗高发动机抖动-蛙趣网" decoding="async" width="554" height="393" class="wp-image-780 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233359713-20250305233359568-11-554w393h.jpg" imgbox-index="6" 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;"><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; line-height: 1; font-size: 10.5pt; outline: 0px !important;"><img alt="图片-本田思铭事故车油耗高发动机抖动-蛙趣网" decoding="async" width="554" height="265" class="wp-image-781 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233400379-20250305233400487-22-554w265h.jpg" imgbox-index="7" 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;"><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; text-align: justify; line-height: 1; font-size: 10.5pt; outline: 0px !important;">故障总结：<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; text-align: justify; line-height: 1; font-size: 10.5pt; text-indent: 24pt; outline: 0px !important;">笔者从车主那里得到信息，这是一辆二手车，再观察车况发现这是一辆重大事故车。由于这是一辆事故车，发动机移位撞到了进气歧管，维修的时候没有更换才导致进气歧管漏气造成燃油系统过稀。我们在维修的时候一定要尽可能多的从车主那里获取车辆的信息，才能帮助我们维修的更快更准确。

页: [1]

蛙趣社区's Archiver

本田思铭事故车油耗高发动机抖动