Cm875 ism derate n excessive smoke
06-09-2019, (Subject: Cm875 ism derate n excessive smoke ) 
Post: #1
Cm875 ism derate n excessive smoke
Got an ism giving me a hell of a trouble..so far only thing I see is a small exhaust leak a the clamp at the egr cooler...but all these codes and derate for one leak??? Non deleted engine


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06-09-2019, (Subject: Cm875 ism derate n excessive smoke ) 
Post: #2
RE: Cm875 ism derate n excessive smoke
It definitely appears you have a boost leak or intake restriction somewhere. The engine brake fault could be a number of things but its unrelated to the main symptoms. Also could do with a clean of the EGR piping, particularly the differential pressure tubes.
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 Thanks given by: Rawze
06-09-2019, (Subject: Cm875 ism derate n excessive smoke ) 
Post: #3
RE: Cm875 ism derate n excessive smoke
Thanks alot
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