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RAM Cummins 6.7L Diagnostic Review and Aftertreatment
Dodge/Ram introduced the Cummins 6.7L in 2007. Unlike the
5.9L, the newer engine was equipped with emission controls.
A Diesel Oxidation Catalyst (DOC) alone with a Diesel
Particulate Filter (DPF) were added. Common rail injectors
used were IQA coded but in time the codes were eliminated.
After the 2011 model year, there was the introduction of
Select Catalyst Reduction (SCR).
Antonio Salas ![]()
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