Cm871 code spn 2791 fmi 13
09-29-2016, (Subject: Cm871 code spn 2791 fmi 13 ) 
Post: #3
RE: Cm871 code spn 2791 fmi 13
It can also be the delta-P sensor bad, or clogged crossover tubes. It can also be other problems/sensor issues that make the engine want more EGR than the valve can give.

A thorough EGR tune-up and cleaning out the EGR valve and testing it is a good start.

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It can also be the wrong software in your engine causing it if someone put a different HP setting (calibration) in.


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RE: Cm871 code spn 2791 fmi 13 - Rawze - 09-29-2016



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