Friend of mine has a 2015 denali 6.2 had a lifter/camshaft fail. Pulled motor did a BTR stock replacement camshaft kit (lifters , cam, plugs, ect) , truck is back together and running good but has a rough idle and will throw a P219B for a "generic" code. My question is all I did was go in and click "afm disable" and wrote the changes. Do you think this could be something to do with all the other box options that can be clicked? And if so what ones ? Thank you ahead of time.