2015 international prostar scr issues

[Justdoit]

Hello guys, I have a 2015 international prostar with a Cummins ISX 15 in it right around 393,000 miles. I am having a issues with my scr throwing fault codes. I have changed both NOx senors which were Originally sending codes. once I replaced them the scr started to give fault codes and I just recently had my def dozer cleaned. A couple of days ago I changed my map senor after finding rawze on YouTube. So any help or suggestions are Appreciated.