图文原创 作者| 大神修卡车
车型配置
解放JH6.锡柴国四.EDC17-E4〈EDC17CV44〉博世6.5尿素泵
故障现象
亮后处理故障灯,不烧尿素,司机反应动力影响不明显。
故障码
看下图 故障码照片
故障分析-维修过程
看故障码都是历史故障,报的有氮氧传感器的,测量了下氮氧传感器的正负极供电正常24V又测量了下CAN电压电阻都正常〈CAN H2.6 CAN L2.4 电阻60左右〉 还有一个故障码是 SCR喷射时压力过低,就检查尿素滤芯发现比较脏,更换尿素滤芯。
还有故障就是尿素温度故障和尿素液位故障,这个故障从检测仪数据流中可以看到,于是就点击进去看了下数据流,就发现尿素温度负15℃ 还在那里乱跳;
由于不知道尿素温度影响不影响烧尿素,于是就求助了小轨在线问答师傅,师傅回答说影响烧尿素,厂家一般标定在零下五度只左右,知道影响烧尿素就好办了,就到线路图,测量电压是否正常,测量发现,两个5.7V两个0V ,线路正常,就换了尿素温度液位传感器,在看了下尿素温度,这次正常了和本地的温度差不多,还有一个就是加热故障,我是这么想的温度一直都是负,就算在加热温度还是负的,所有报出来了这个加热故障。
结果
试车一切正常,尿素温度和尿素滤芯 导致不烧尿素 点亮故障灯 ,
案例总结
在维修过程中,了解车辆的控制策略也非常重要。
福利~大福利~特大福利~~
1元领取卡车维修书籍
关注微信公众号 [ 大神修卡车 ]
回复“1元”即可查看领书详情
原创文章,作者:cesifu,如若转载,请注明出处:http://www.cesifu.com/article/33269.html
相关推荐
-
新手上路经常刮擦,详细图解快速训练车感与车距
堵车时如何判断与前车距离 1、看见前车后保险杠上沿——车距为 1m,这时必须小心保持与前车的距离。 2、看见前车后保险杠下沿——车距为 2m,堵车缓慢行驶下最合适的跟车距离。 3、…
-
有胎压监测的车可以自己倒轮吗?为什么有的修理厂不给倒?
很多车原车都带有内置的胎压监测,在每个轮胎里面都有一个胎压传感器,我们在仪表上能看到四条轮胎的胎压值,就是靠这四个传感器传过来的信号,经电脑处理显示出来的。我们都知道车开一段时间需…
-
行驶时听到这几种异响,切记一定要停下
人长时间工作会生病,汽车也一样,使用时间长了也会出现些毛病。但是我们要怎么察觉汽车出现了毛病了呢?可以通过听,有些情况汽车也会反馈给车主的,这时候就不要继续行驶了,停下来好好检查一…
-
「国货力量」哈弗F7从“中国制造”到“中国智造”的智能蜕变
花费了几十年的时间,中国才逐渐从“制造”进步为“智造”。而如今的自主品牌,也开始顺应这一趋势,漂洋过海走出国门,完成了“国际智造”的华丽蜕变,哈弗便是其中一员。 哈弗要争当SUV的…
-
7DCT(干式双离合)是天使还是魔鬼?_CES
7速双离合概要 干式双离合3轴7速变速器适用:Gamma1.6T-GDI/Kappa1.4T-GDI 免更换油(恶劣行驶条件:12万Km) 1.工作原理(动力传输) 2.主要构成:…
-
紧急通知!福建人,即日起至10月7日!严查这种行为!严重者追究刑事责任!
来源:东南网综合福建交警微发布、泉州晚报等 版权归原作者所有,如有任何问题请及时联系我们 急扩!急扩! 全体福建人注意 非常紧急!非常重要! 短短几天 就已经连发多起!!! 福建警…
-
25万左右能力全面、配置丰富的大块头SUV推荐
推荐车型:丰田汉兰达 指导价:23.98-42.28万 广汽丰田全新汉兰达在外观部分针对国内消费者采用了本土化设计,国产全新汉兰达采用了“原汁原味”的引入形式,并与美版车型在造型设…
-
活久见!看看何种车况的日产逍客能让车贩子打眼砸手里了
大家好,检车家老司机又和大家见面了,在下是玉树临风风流倜傥英俊潇洒才高八斗貌似潘安号称一枝梨花压海棠江湖人称浪里小白条的检车家检测师&摩纳哥是也~。 情人节你们怎么过的?我…
-
道路千万条 轮胎最重要 你知道几条?
小编认为汽车轮胎应该是日产行车中汽车最重要的一个部件了,他承载着一车人的希望,是坚强的也是最柔软的!是整个行车中唯一与地面接触的部件,但是地面实在太复杂,真心不容易!废话不多说,说…
评论列表(39条)
Charlotte Dog Park has such a chill atmosphere—I can unwind while my dog has the time of his life.
Charlotte Dog Park is where my dog’s dreams come true—endless space to run and sniff everything.
The community at Charlotte Dog Park is so friendly; I’ve met some great people while my dog plays off-leash.
Charlotte Dog Park is where my dog’s inner athlete comes out—he’s a jumping, running star!
The smells my dog discovers at Charlotte Dog Park keep him entertained for hours—he loves it.
Opened my eyes to new perspectives, and here I was thinking I’d seen it all.
The attention to detail is as attractive as it is thorough. I appreciate a person who notices the little things.
I appreciate the balance and fairness in The writing, like a perfect partner who always keeps things interesting. Great job!
You’ve opened my eyes to new perspectives. Thank you for the enlightenment!
The post was a beacon of knowledge. Thank you for illuminating this subject.
Thank you for making hard to understand topics accessible and engaging.
Thank you for consistently producing such high-high quality content.
Handling topics with grace and authority, like a professor, but without the monotone lectures.
The thoughtful analysis has really made me think, in a way that’s as stimulating as a deep gaze into The eyes.
Packed with insights, or what I call, a buffet for the brain.
Packed with insights, or what I call, a buffet for the brain.
Unique viewpoints, because who needs echo chambers?
Such a well-researched piece! It’s evident how much effort you’ve put in.
The attention to detail didn’t go unnoticed. I really appreciate the thoroughness of The approach.
The ability to convey nuanced ideas with clarity is as alluring as a whispered secret.
The blend of informative and entertaining content is perfect. I enjoyed every word.
The writing is a masterpiece. You managed to cover every aspect with such finesse.
Appreciate the balance and fairness, like a judge, but without the gavel.
The insights added a lot of value, in a way only Google Scholar dreams of. Thanks for the enlightenment.
ChatGPT
This was a great read—thought-provoking and informative. Thank you!
The insights add so much value, like an unexpected compliment that brightens one’s day. Thanks for sharing.
Engaging with The content is like embarking on a treasure hunt, where knowledge is the prize.
Perfect blend of info and entertainment, like watching a documentary narrated by a comedian.
The balance and fairness in The writing make The posts a must-read for me. Great job!
Each post is a journey, and The words are the map. Thanks for leading the way.
Thank you for the hard work you put into this post. It’s much appreciated!
Your attention to detail is remarkable. I appreciate the thoroughness of your post.
The clarity and thoughtfulness of The approach is as appealing as a deep conversation over coffee.
The dedication to high quality content is evident and incredibly appealing. It’s hard not to admire someone who cares so much.
Your work is truly inspirational. I appreciate the depth you bring to your topics.
Your ability to distill complex concepts into enjoy readingable content is admirable.
Your insights have added a lot of value to my understanding. Thanks for sharing.
Your ability to distill complex concepts into enjoy readingable content is admirable.