EGR Delete Info -- Educate yourself

[Trashman]

Hope everyone is well. I'm having some issues with a Paccar PX6 (aka 6.7 Cummins) had the codes read and it seems like I'm getting to much back pressure. What could cause this ? I run trash routes in the country so it's a lot of stop & go, back roads and hills. Been thinking about doing the delete because of what I do and the issues that will follow with down time. By the way it's a 2010 Kenworth.