Check engine light at exactly 25000 miles

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Jul 9, 2016 | 12:00 PM

ctzdavis

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Joined: Oct 2010

Posts: 35

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From: NE Oregon

Check engine light at exactly 25000 miles

Hello all. My check engine light came on at exactly 25000 miles on the odometer. 2015 stock 2500. Any ideas on why?

Jul 9, 2016 | 04:31 PM

gsbrockman

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Joined: May 2002

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From: Sand Gap, KY.

Without a code....it's all a guessing game.

Jul 9, 2016 | 04:57 PM

BigIron70

Cummins Guru

Joined: Feb 2008

Posts: 4,191

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From: Sunny Southern California Land of Fruits and Nuts

Like stated above pull the code and we can help you better diag the problem. If it is a P20EE then the fix is simple but we need to know what code has set.

Jul 9, 2016 | 08:32 PM

ctzdavis

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Joined: Oct 2010

Posts: 35

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From: NE Oregon

P203F Reductant Level Low
P20EE SCR Oxides of Nitrogen Catalyst Efficiency Below Threshold (Bank 1)
P249E Closed Loop Reductant Injection Control At Limit Flow Too High
Are the codes I have. Any ideas?