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斯柯达明锐轿车怠速抖动、用这个思路简单搞定!

  • 2026-02-08 15:32:26
斯柯达明锐轿车怠速抖动、用这个思路简单搞定!
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故障现象：
一辆斯柯达明锐2012款轿车，行驶8万千米，发动机怠速时有轻微的不规则抖动现象。停车加油时，排气管有突突声。行驶过程中，急加速、超车比较费力。
故障排除：
用解码仪读取故障码，无故障码显示。读取数据流，也未发现有严重超差现象。以上考虑电控部分可能无故障，故障原因可能在油路上。
检查油路，测量油路压力，怠速时油压为230kPa，急加速时为260kPa。将发动机熄火后，再观察油压表，显示值为180kPa，完全符合燃油压力规定值，说明油路也可能没问题。检查点火电路，对火花塞进行了清洗，并对点火线圈进行了检查，也未发现异常。
由于该机怠速轻微抖动，加速不好，排气管有突突声，可能是有的缸工作不好。于是测量了气缸压力，四个缸压力基本相同，各缸并无漏气现象。根据发动机常规检查法，怀疑高压线可能有故障，更换了全部高压线，上述故障现象全部排除。
提示：
怠速不良是发动机常见的一种故障，也就是怠速运转时发动机发抖，转速不稳，造成发动机怠速不良有很多原因，一般有：
①进气系统漏气，会导致气缸混合气过稀，引起怠速不良，甚至熄火；
②空气滤清器脏污堵塞；
③若个别缸不工作，或是空气流量传感器损坏，燃油压力和汽缸压力低；
④各缸喷油器喷油不均匀；
⑤点火提前角调整不当时，发动机也会工作不稳；
⑥配气相位不准确也会造成怠速不良等。
本文来自网友投稿或网络内容，如有侵犯您的权益请联系我们删除，联系邮箱：wyl860211@qq.com 。

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  139. /yingpanguazai/ssd/ssd1/www/e.mffb.com.cn/runtime/temp/600e51726691ba7063b44bb89d9aaaff.php ( 11.98 KB )
  140. /yingpanguazai/ssd/ssd1/www/e.mffb.com.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.001265s ] mysql:host=127.0.0.1;port=3306;dbname=e_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001571s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000746s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000732s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001412s ]
  6. SELECT * FROM `set` [ RunTime:0.000637s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001397s ]
  8. SELECT * FROM `article` WHERE `id` = 470264 LIMIT 1 [ RunTime:0.002686s ]
  9. UPDATE `article` SET `lasttime` = 1770546930 WHERE `id` = 470264 [ RunTime:0.004472s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000693s ]
  11. SELECT * FROM `article` WHERE `id` < 470264 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.011871s ]
  12. SELECT * FROM `article` WHERE `id` > 470264 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001100s ]
  13. SELECT * FROM `article` WHERE `id` < 470264 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.005236s ]
  14. SELECT * FROM `article` WHERE `id` < 470264 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.025419s ]
  15. SELECT * FROM `article` WHERE `id` < 470264 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.012716s ]
0.241998s