The only reason that I brought up the SCR was the fact that the SCR that Cummins brought out in 2010 had issues after a certain range of miles. They weren't as effective as they should have been and they started to replace them on trucks as they failed. It was a certain date range of when they were built that they had issues with.
Check engine light on cummins isx 2012 peterbilt
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Jonathan Hunter, May 15, 2015.
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