What I don't get is people read or hear something and take it as gospel...
My understanding as to why these engines calls quits is a combination of things but a main theory being because of the egr and oil blow by mixing together to form a oily mist/sludge which can not only completely cake and block the whole intake but also coat the maf sensor causing it to read incorrectly... Sometimes resulting in incorrect readings which can cause the Ecu to ritchen up the fuel making holes in pistons... Now correct me if I'm wrong.. But you then attempt to eliminate that possibility by blocking off your egr and fitting an inline catch can... By blocking the egr it's not common to see an increase in boost.. Enough to put the patrol into limp mode.. Hence why people use the likes of a Dawes and needle valve to manually control boost levels and spool up rate of turbo... This is my simplified understanding of nads...
Now I've been told the ecu makes them blow up because they can't read boost and that the power delivery is to irattic hence why the use of Dawes and needle valve...
Then why are there so much patrols out there with no nads with high k's and not a trouble in the world... When doing my injector pump and removing and seeing the state of the intake... It gave me a better understanding of what effect a blocked up intake would have on the engine... Now this is due to a few factors but mainly being because of the engineering involved to meet the strict emission laws... I simply don't believe it's a luck of the draw with the ecu being incompetent in the reading of boost and calculating of fuel delivery why they blow up... And hence why a Dawes and needle valve are used... Instead of the factory ecu.. I've done all supporting mods to my understanding.. And yet I've been told I can't run over 22psi that my turbo will blow up.. That my motor is just about to blow up because I'm not using Dawes n needle valves.. It's going to blow up because I've got a different maf housing which is causing it to drop 2v and lean out the fuel which is going to make it blow up... I'm getn excessive heat soak and causing to much back pressure.. Ive basically got half the power compared to standard form because of aftermarket intercooler and higher boost...I've herd it all... In my opinion that's how things are learnt.. Through exp not from a mates mate who said that his mate said this... It's simple realy.. If it works it works.. If it ain't broke why fix it...