HEST light on too often...

[Brock]

Just to update. I changed the dpf differential pressure sensor which is very easy, 1 plug and 2 hoses...... if course I'm a idiot and connected the hosea backwards. after realizing and correcting. .... no change.

I bought the no maintinance crankcase filter and when I took my old one out I noticed a few things.. 1. it was about 5 pounds, black as can be and 2..... oh boy... 2...

I asked a shop one day to drill a 3/8 hole in it. Sent the exact picture from @m*m^2 document plain as day. Well they drilled 8 holes in that damn filter!!! every side of it, even through the filter media.... there was chunks of filter media inside the crankcase filter housing!!! but they didn't drill where the picture showed them too.

My crankcase pressure (according to insite) dropped alot. I was always over 10 and ad high as 14 but now the highest I've gone is 8.4 but usually hover around 4.

Still constant regen.

But I may be beating a dead horse... I've been watching rawzes engine rebuild videos and he made a statement that has me worried. he talked about a oil leak that starts upper corner behind crankcase filter and travels down. I have the exact leak that he talks about and he says that usually means cam issues. further down where he says to look for discoloration, mine looks like there's possible surface rust under the paint there.

I think it's time to pop the valve cover and see what horrors I find.