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I've been busy with my Patrol last two days. The car is losing power after 2500 rpm and enters in a limp mode. I have the EGR blocked and I already clean the MAF sensor, but I don't have any other NADS in place, not a boost gauge nor a catch can... So, basically I started looking at the turbo and found that it was stuck... the turbo VNT lever was not moving at all. So I take it off the car and started the cleanup... I found a lot black dust there blocking a free moving of the pieces inside... I clean it all with WD-40 and a toothbrush... also 1000 grit sandpaper. The problem I'm having is when I assembling the parts back... after setting the nozzle ring back if the nuts that keep the ring to the chamber(yellow) are too tight it will block the free movement of the ring and the expected correct working of it. Also, after putting back the turbine to the core of the turbo if the external screws are also tight the VNT not moves at all (Red).