International DT466e

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mxx20
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Joined: Sat Jul 18, 2020 8:03 pm

International DT466e

Post by mxx20 »

So i am chasing a CKP fault on a DT466e (egr motor), I know the checks per Navistar fault 147 are all in spec. I put the scope on it and I haven't been able to find a good wave and i don't have another to compare it too. Can someone led a second set of eyes? Sorry still learning with the scopes.I have the file uploaded to google drive as it states to big to load into email or anywhere.

muttnjeff
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Re: International DT466e

Post by muttnjeff »

I would start with the basic settings, take a pic with your phone an upload would be an option or just a shorten the recoding.

ben.martins
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Re: International DT466e

Post by ben.martins »

Hi mxx20,

Thank you for posting and please, there is no need to apologise. We all had to start somewhere and the great thing about scope diagnosis is we never stop learning.

If you have the file uploaded to google drive and you don't mind sharing the link here, then it might be easier to drop the link into this post. If not, a picture as muttnjeff suggested will help us understand your settings and hopefully guide you to getting a better capture.

To help you get started and make sure you have something on screen it might be useful to follow the startup settings I've suggested here - viewtopic.php?p=100735#p100735. You can also download the file at the bottom of the post, which you can open in PS6 or PS7 and it will set the scope for you to the settings described.

If you have a particular long capture you can trim this down to just one buffer or select a range. When you click Save As you'll notice another option to select All - Current - Select Range (or Waveform Numbers in PS6). This will help keep the file size down and you should see an approximate file size underneath these settings.

I hope this helps and look forward to seeing your capture.

Kind regards

Ben

mxx20
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Re: International DT466e

Post by mxx20 »

Thanks, i haven't had time to go back out and try to re run with a shorter time or anything. Here is the link. https://drive.google.com/file/d/1KvlpdO ... sp=sharing

only thing that sticks out is the cmp sensor even though the ckp is the one erroring. Figured out I still have the settings wrong. Will redo again lol

mxx20
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Re: International DT466e

Post by mxx20 »

Ok i got it this time, Such a learning curve finally getting to fully use it.
Attachments
International Harvester_2005_20201019-0001.psdata
(2.42 MiB) Downloaded 5 times

carl456
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Joined: Sat Mar 30, 2019 8:41 am

Re: International DT466e

Post by carl456 »

Hi,
Looking at your waveform and applying a maths channel it would seem there may be an issue with the crank signal. The maths channel appears to show crank speed increasing/decreasing at incorrect times.

I am certainly not the most qualified person to offer you advice and I am sure someone will help you
far more than I, but I saw that in the capture and thought it odd.
Attachments
2.PNG
Capture1.PNG
capture3.png

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