Ok starting a new thread for this question.
Warning this could be a long one.
0630 today I start the Triton (ML 3.2l) as I always do to let it tick over for a min or 2 before I drive to work. It started but idle seemed lower. Still smooth but closer to 500 rpm than the normal 700. Pressed the go pedal with hand to try getting it to idle up a bit and nothing happened. Tried a few more times and still no rpm change at all. Turned it off started again idle sounded about right and upon holding the go pedal down to the floor for 15-20 seconds I got the rpm to around 1200.
Left it run while I grabbed my gear for work (2mins or so) go back out the front and there is a very large cloud of blue smoke floating up the street originating from my Triton. Turned it off popped bonnet check oil coolant everything that is a easy look over. Started it again and still pissing smoke. Pressed go pedal and rpm still very slow to climb smoke levels went up 10 fold. Turn it off again disconnect battery to see if resetting stuff made any change = nope still smoking still almost zero throttle response. Tried starting with my chip plugged in (chipit) which has been disconnected for around 10,000km throttle response was great smoke slowly reducing. Do a lap of block smoke stopped so off I go to work with chip plugged in. By connect and disconnect chip I don't remove plug from rail I simply remove power from the chip unit. Fairly sure I remember reading when I got the chip that if it does not get power it's as if it's not in the system at all, please correct me if I'm wrong on that one.
Disconnect chip at work start it a few times and all is good no smoke running well. Drive home before lunch check intake for oil from turbo seal = none to be seen dry intake. Oil level still fine, coolant still fine, no codes on scan gauge.
Drive to airport to pick up kids and while at 100kph it starts to die, over 2-3km I drop back to 80 gradually not trying to due to the Logan mwy being rather busy, as motor surges then dies surges again then dies then it stopped dead. Pull over wouldn't restart, connect chip away we go as normal. A bit harsh in transition from coast to acceleration but ran fine the rest of the way and home again.
Now I'm trying to figure out what to do. 233,000km on clock, EGR blanked with 8mm hole, oil + filter done 4000km ago same as fuel filter and air filter. Checked intake manifold when I did last service and only light carbon coating inside, crank case blow by does not enter the intake anymore. Filled with fuel yesterday and dragged the boat 200km around brisbane without issue. Drove to get dinner last night again no issue. I'm leaning towards fuel filter after the way it carried on to the airport today but that does not answer the blue smoke question.
If anyone has any ideas please let me know.