Isx Crankcase filter sensor high pressure

[Nilao]

Can be multiple things. Off top of my head head gasket, cracked head, egr cooler leaking; how's the coolant? Is it running down the bottle? Mine has a slight over pressure issue but I lose half a gallon a week from the cap. None on the coolant so at this point I'm running it to make $ to replace the head if I have to. But to say it's in need of a rebuild without taking the proper steps is asinine.

PS. I would bet money your dpf is cracked at this point and will need to be replaced or go ahead and remove the mandate. I believe there is an awesome shop in Las Vegas, Nevada area that can help with that.