Crankcase pressure

[Tim386]

I just found this forum yesterday but I read about the insite program and looking to get it, I know it’s hard to tell without all the right info.
I have a 2012 Pete 386 I think it’s the 2250 that year
874,399 miles
19,979 hrs
No rebuild yet, emissions intact and no programming done to ecm
The SCR is about 2 yrs old and other was burned out recently at dealer
I’m not going through any oil maybe a gallon every 15,000 miles when I do pm. I will be starting the egr tune this weekend and thought about getting the no maintenance filter, not sure if that matters, thanks for your time and input, also I will get a pressure test done for blowby
The code was coming on when I drive and going out sometime at night while idling but back on the next day after a couple hrs of driving but is on all the time now