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Thanks. Will dig into that a bit more

My sons sled is going through a tank of oil per tank of gas. Much of which seems to be going through exhaust and out the pipe. I have the same sled 3x the km with no issue. Any ideas what causes this?

The pull of the turbo 4 stk is like no other (240 MCX) Exhilarating to say the least. But there is definitely a trade off in handling. Flatlands and ditch banging, long steep pulls... great! Boondocking and tree riding.... Not so much IMO

Thanks to all who tried to help. It appears the MCX fuel controller has failed. Put 12v to injectors and all working well. Applied 7psi to the controller and will not open injectors. Checked continuity of pin connectors with 7psi applied and no continuity between keyed power and injector feed...

Re-checked all connections. Does not seem to be any issues. MCX ECU is located under the rad shroud so did not get wet. Was running excellent when I parked it in warm shop Had issues right off the truck last ride. Have even changed battery on the off chance.....

Was told when I purchased the sled that the exhaust donuts were replaced within the last 100 k. I have checked all hoses and lines, can blow through all easy. When I first had an issue I had unplugged the MCX box, I am beginning to think I may have a poor connection there maybe a bent pin...

I am new to the turbo world. Picked up a used 09 nytro with a 240 MCX to test the water. previous ride showed a code 26 (Intake air pressure, clogged or pinched hose) tore down inspected hoses put machine together. The last ride it will not go beyond 7000rpm starts to miss and bog. No codes...