别克君越冷车启动怠速不稳，加速不良
<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;">故障现象：一辆上海通用别克君越，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">09</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">年</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">11</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">月生产，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">排量</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">2.4L</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;">行驶里程</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">11.6</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">万公里。大修后发现</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">冷车启动怠</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">速不稳，踩下油门踏板发动机加不上速。</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;">故障</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">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;">用</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">X431</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">远征解码器读取故障码为：</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;">.</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">PO134-00</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">加热型氧传感器电路活动性不足，传感器</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;">、</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;">.</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">PO300-00</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">检测到发动机缺火</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;">3</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;">P1133-00</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">加热型氧传感器转换不足，传感器</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;">、</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">4</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;">P2A00-00</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">加热型氧传感器电路闭环性能，传感器</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;">、</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">5</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;">P0030-00</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">加热型氧传感器加热控制电路传感器</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;">、</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;">.</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">P0036-00</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">加热氧传感器加热器控制电路传感器</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;">、</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;">.</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">P0102-00</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">质量空气流量（</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">MAF</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">）传感器电路低频</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;">8</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;">蒸发排放（</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">EVAP</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">）吹洗电磁阀控制电路</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 fetchpriority="high" decoding="async" width="553" height="280" class="wp-image-746 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233155868-20250305233155181-Picture-2-553w280h.jpeg" alt="C:\Users\Administrator\Desktop\别克1_修.jpg" 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;"><img decoding="async" width="553" height="324" class="wp-image-747 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233156815-20250305233156903-Picture-3-553w324h.jpeg" alt="C:\Users\Administrator\Desktop\别克3_看图王.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;"></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 decoding="async" width="553" height="399" class="wp-image-748 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233158266-20250305233158224-Picture-2-553w399h.jpeg" alt="C:\Users\Administrator\Desktop\别克4_看图王.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;">由于故障码过多，我们对这些故障码进行分析研究认为这些传感器有可能是一个共性引起的，那就是缺少电源。于是我们对该车的发动机控制系统电路进行了研究，电路图如下</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 decoding="async" width="554" height="423" class="wp-image-749 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233159238-20250305233159316-Picture-4-554w423h.gif" alt="C:\Users\Administrator\Desktop\别克电路图.gif" 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; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;"><img decoding="async" width="554" height="390" class="wp-image-750 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233200998-20250305233200868-Picture-5-554w390h.gif" alt="C:\Users\Administrator\Desktop\别克电路图2.gif" 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; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;"><img decoding="async" width="554" height="408" class="wp-image-751 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305233202209-20250305233202596-Picture-6-554w408h.gif" alt="C:\Users\Administrator\Desktop\别克电路图3.gif" 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;"></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;">通过查看电路图我们发现前后氧传感器加热电路</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">12</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">伏电源，空气流量计（</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">MAP</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;">12</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">伏电源，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">碳罐电磁阀</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;">EVAP</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;">12</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">伏电源都是由发动机控制点火继电器</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">KR75</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">供给，然后再经过保险丝</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">F47</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;">10A</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">）来提供。于是，我们把目标重点锁定在</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">F47</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">保险丝上，看看</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">F47</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">是否损坏。经检查发现</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">F47</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">保险丝熔断。</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;">故障排除：更换保险丝</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">F47</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;">清除故障码，</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">发动机冷启动</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;">平稳加速良好，故障排除。</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;">维修总结：当发动机有许多故障码时，我们不能单从一个故障码入手，这样会走很多弯路，还没有头绪。我们应该分析为什么发动机会同时报这几个传感器</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;">，这些的故障</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">码是否</span><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;">存在共性，是否共用了电源或打铁。如果发现他们的共性就能快速的锁定故障点，为维修该类故障节约了大量时间。</span></p><div><span style="box-sizing: border-box; outline: 0px !important; font-size: 11pt;"><br></span></div><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></p>
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