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Old 05-18-2018, 05:21 AM   #1
cumins01

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Crankcase breather code?

I have a 2012 Cummins with EFI by Starlite Diesel. It has 127K on the engine. Last weekend I pulled the valve cover and ran the valves and retorqued the head. While I was in there, I gutted the factory crankcase filter and vented it by running a hose down the side of the block. Now if I lug the engine down below 1200 RPM, or get it above 2600 RPM, I get a code for crankcase filter restriction. Can anyone explain why? I would figure with the filter gutted I shouldn't see anything like that.
Thanks
 
Old 05-18-2018, 08:58 AM   #2
biggy238
 
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The sensor doesn't see the differential pressure that would have been cause by the filter, which is then interpreted as no flow rate or plugged filter.





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Last edited by biggy238; 05-18-2018 at 09:00 AM.
 
Old 05-18-2018, 10:36 AM   #3
cumins01

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any way to "trick" it so it doesn't come on?
 
Old 05-18-2018, 10:58 AM   #4
Snedge
 
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Tune it out
 
Old 05-18-2018, 11:39 AM   #5
cumins01

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New at this tuning thing. How do I do that? Does the originator of the tunes need to do this? All I have is a autocal
 
Old 05-18-2018, 11:42 AM   #6
Snedge
 
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Quote:
Originally Posted by cumins01 View Post
New at this tuning thing. How do I do that? Does the originator of the tunes need to do this? All I have is a autocal

Yes, just tell them to disable the fault code for CCV.
 
Old 05-18-2018, 12:43 PM   #7
cumins01

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Thanks for help CompD!
 
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