Warn engine/ stop engine lights an buzzers

[pingpong1984]

I have a 2011 international prostar. Its has the cummins isx. recently I got the crank case pressure to high code I changed the filter and drilled a hole in it but I'm still getting the same code.. plus the stop engine light/buzzer there's also another code for the fan silinod should I have changed the sensor?.?? Or is it because of the blow by there's a decent amount of blow by coming from the oil fill cap when removed .I'm in Augusta ga tonight any recommendations on shop in the area or just take it to Cummins