will recall T79 make the check engine lite come on in a 2014 Ram 2500?

What is your question?

Just bought this 2014 2500 Dodge Ram pick up "as is and NO warranty" The check engine light came on after running GREAT FOR 3 weeks we have to get EMISSIONS done as the temp plate expires in 1 week.. Got the recall notice for T79.. wondering if that is the check engine light problem? Not sure How to tell Why the check engine light JUST came on? Any suggestions?

How long has your 2010 Dodge Ram 2500 had this problem?

less then a week