2011款别克英朗发动机进气系统故障案例
<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; text-indent: 22pt; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">故障</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">现象</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">：</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">2011</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">年款，搭载了涡轮增压发动机的</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">别克英朗</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，发动机</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">故障灯点亮，轻微游车，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">动力不足，油耗大，排气管轻微冒黑烟，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">故障码为混合气过浓</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">该车在其他修理厂更换了空气</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">流</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">量计</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">、</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">氧传感器和增压压力传感器</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">故障依旧。</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: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; text-indent: 22pt; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">故障检修</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">：</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">接车后接上诊断仪读故障码为混合比富化，读取数据流</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">空</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">气</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">流量计数值为</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">5.68</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">克</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">/</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">秒，空气压力为</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">30</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">千帕，初步判定为增压器至节气门处漏气。</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: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;"><img alt="图片-2011款别克英朗发动机进气系统故障案例-蛙趣网" fetchpriority="high" decoding="async" width="554" height="248" class="wp-image-767 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233344155-20250305233344741-Picture-2-554w248h.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></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: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">因为疏忽</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">了</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">空调和大灯是同时在打开的位置上，所读的空气流量计</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">数值偏大、</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">进气压力传感器数值</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">也有偏差</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">关毕大灯</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">、</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">空调，发现空气流量计的数据不正常，在平稳</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">怠</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">速时，空气流量传感器数值为</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">2.4</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">8</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">克</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">/</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">秒，偏小，正常涡轮增压发动机进气流量应该在</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">3</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">克</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">/</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">秒，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">怠速</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">观察</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">30</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">秒种后，发现空气流量数值变为</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">2.20</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">克</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">/</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">秒，继续观察</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">2</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">分钟后，空气流量计数值下降至</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">1.7</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">克</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">/</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">秒，并且氧传感器数值</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">都</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">一直在</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">0.7</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">1</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">v</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">以上，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">根据这些数据初步</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">判断三元催化器堵塞。</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: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;"><img alt="图片-2011款别克英朗发动机进气系统故障案例-蛙趣网" decoding="async" width="554" height="293" class="wp-image-768 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233345858-20250305233345379-Picture-3-554w293h.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: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;"><img alt="图片-2011款别克英朗发动机进气系统故障案例-蛙趣网" decoding="async" width="554" height="283" class="wp-image-769 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233346423-20250305233346392-2-554w283h.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;"></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: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">经拆卸验证</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">第二段三元催化器堵塞。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">在没有安装</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">第二段三元催化器</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">的情况下</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">着车，持续观察空汽流量计数值稳定在</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">2.4</span>8<span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">克</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">/</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">秒，不</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">再</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">下降</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">但是数值还是偏低</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">。正常涡轮增压发动机</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">在急加油</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">的</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">瞬间</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">进气量应达到</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">70</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">克</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">/</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">秒，自然吸器发动机应</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">达到</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">40</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">克</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">/</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">秒，而该车则只能</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">达</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">到</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">60</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">克</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">/</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">秒。考虑修理厂是更换</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">的</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">副厂空气流量计，把旧的空气流量计装上着车，空气流量计数值一直稳定在</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">3</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">克</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">/</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">秒</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">左右不变化</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">急加油的瞬间能达到</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">70</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">克</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">/</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">秒</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">多次</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">试车验证故障排除，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">交车。</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: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">交车后第二天该车</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">又到店返修，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">故障灯点亮，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">排气</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">冒黑烟，动力不足。读取故障码</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">仍</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">为混合比富化</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">读取数据流，发现增压压力在未启动时压力</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">为</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">106.2</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">千帕，正常应该和大气压相同</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，着</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">车读取数据流，在怠速闭环情况下长期然油修正为</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">百分之</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">7</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，属于偏稀一点点，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">对发动机工作不大；</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">在发动机</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">2000</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">转时，长期燃油修正为</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">百分之</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">-17</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，属混合气过浓</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">。</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: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;"><img alt="图片-2011款别克英朗发动机进气系统故障案例-蛙趣网" decoding="async" class="wp-image-770 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233347162-20250305233347708-%E5%A8%81%E5%A8%81-554w318h.jpg" 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;"></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: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; text-indent: 22pt; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">在检查时可以发现发动机的气门室盖有“</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">咝咝</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">”的漏气声，揭开机油盖，有很大的吸力，怀疑气门室</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">盖内部</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">单向阀损坏，为了验证气门室盖是否损坏，直接把气门室盖到发动机进气支管的管道拆下堵严实</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">着</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">车读取数据流，此时读取的长期然油修正的数据，在</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">怠</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">速时，长期然油修正值为</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">百分之</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">-17</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">属</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">浓</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">混合比</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，在发机</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">机</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">转速稳定在</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">2000</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">转时，长期然油修正值为百分之</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">10</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">虽然数值和原来相比是好了不少，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">但</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">担心交车后行驶一段时间后出现混合气</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">贫</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">化，并且故障数据值不是</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">往正常</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">方面修正，而是往异常数据值修正，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">检查</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">中发现空气流量计后端</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">进气</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">管处至气门室盖与进气支管所连接的废气管</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">已经</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">严重吸扁，为了</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">验证</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">是不是因为此管或者是气门室盖漏气引起的故障，直接把空气流量计后端</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">此管及</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">进气支管处用工具堵严</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，启动</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">再次验证</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">怠</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">速</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">时长期燃油修正百分之</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">6</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，发动机稳定在</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">2000</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">转时，长期燃油修正为百分之</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">-17</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，依然往稀的方向修正。</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: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;"><img alt="图片-2011款别克英朗发动机进气系统故障案例-蛙趣网" decoding="async" width="538" height="339" class="wp-image-771 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233349761-20250305233349134-Picture-4-538w339h.png" 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;"></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: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; text-indent: 22pt; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">从此可以得出，该车</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">混合气富化</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">和这条</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">管吸扁没</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">有太大的关联，气门室盖也没有大太关联，一直没有找到问题点。经过和几位老师讨论和分析</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，一致认为故障范围在进气增压部分，增压器到</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">到</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">中冷器部分概率较大，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">因为数据流增压压力一直偏低，在刚开始维修过程时，增压压力就是不正常的一个数值，所以一直没有考虑增压压力传感器。检查是发现在急加速时，前保险杠右下角有</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">轻微的</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">“碰”的一声</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">响</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，不细心</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">听发现</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">不了</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">于是把保险杠拆下，发现中冷器进气管的密封圈</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">没有安装，此处</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">怠</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">速轻微漏气，加速漏气严重，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">在中冷器的进气管的密封圈安装上去后</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">试车，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">燃油修正的长期</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">、</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">短期都开始</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">往正</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">常的方向调整，并且增压压力在急加速时可以达到</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">1.6bar</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，路试后动力恢复正常。再读数据流，长期燃油修正还是往浓的方向调整，测量燃油压力，燃油压力为</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">290kpa</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，相比正常车辆，低了</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">50kap</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">左右。在告知车主后，车主不愿意再维修。在多次试车后，交车。</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: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; text-indent: 22pt; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">故障总结</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">：</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">在读取空汽流量计数值和后氧传感器数值后，发现存在异常，空汽流量</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">数据在</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">怠速</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">稳定</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">后</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">慢慢的往小的方向变化，而后氧传感器则一直处于过浓的数值，因为后三元催化器轻微堵塞引起排气背压高，排气不畅导致进气流量过小，长时间行驶后，排气不畅前氧传感器便检测到当前混合气过浓。报出混合气过浓故障码。在第二次维修时总结出气门室盖的曲轴通风单向阀的工作原理是</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">当发动机工作时，曲轴箱内的</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">蒸气经出气管</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">、单向阀吸入气缸中，而新鲜空气经气门室罩上的小空气滤清器进入曲轴箱内。单向阀的作用是防止发动机在</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">低速小</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">负荷时进气管的真空度太大而将机油从曲轴箱内吸出。发动机在</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">怠</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">速</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">时进气管内真空度大，单向阀被吸在阀座上，曲轴箱内废气</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">经阀上</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">小孔进入进气管；随发动机负荷增大，进气管的真空度下降，阀在弹簧力的作用下向外顶开，这时通气量逐渐加大；发动机大负荷时，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">阀完全</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">打开，通风量最大，因而起到更新曲轴箱内空气的作用。所以在验证时气门室盖和其所连接的管道堵严实之后，还是不能解决问题，反而故障现向往其他异常方向修正去了，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">差</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">点导致误判断，该故障归根结底就是中冷器进气口处的一个密封圈不亦而飞，导致</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">增压</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">管路漏气，虽然空气</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">流量计能准的</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">计量</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">当前的进气流量大小，但是由于增压管路漏气，在</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">怠</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">速时，增压不介入工作，所以管路漏气不会太大</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，几乎不</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">影响发动力的燃油修正，但是发动机</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">超过</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">2000</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">转时当增压器介入工作，使大量的空气在中冷器进气口处漏出，所导致动力不足并且混合气过浓。</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: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; text-indent: 22pt; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">故障心得</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">：</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">每次接车一定细心问诊，不能错漏任何环节，不能疏忽。</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">认</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">清真伪故障码，分析真故障码，读取数据流时，先推理，后动手，再验证。不能疏忽任何存在的故障数据，通过</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">对</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">数据</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">的分析</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">从而</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">推导</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">出故障</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">范围</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">，然后进行</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">检查</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">验证</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">找出故障点，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">排除</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">故障</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">。</span></p><p></p>
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