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Rzr Turbo missing on top end and stalling at idle?

3.6K views 4 replies 5 participants last post by  Max H  
#1 ·
I’ve got a 2018 Rzr turbo XP, it’s got a bad miss on upper end while driving it and when I let off the gas around idle it just dies. I also have this weird howling noise coming from the intake as well dont know if this could be tied to my other issues or not? I’ve changed the spark plugs, drained the tank and put fresh 93 in, and battery voltage seems to be good. Any ideas?
 
#3 ·
Couple things.

Check your exhaust manifold bolts on the passenger side. Mine were loose/missing. Some discussion with others that is is an issue on the 18's

Check the vacuum lines on the turbo. Had a cracked one and the machine would fall on its face.
 
#4 ·
Do you still have stock blow off valve and charge tube?? Stock charge tube is plastic and can split over time...my father has a 2020 pro, herd a hissing and had no power he had a bad blow off valve. Don't you have a engine code??
 
#5 ·
Check your fuel pressure at idle and under load. At idle it should be 58 + or - 2 psi
Under load it should be 58 psi plus one PSI per pound of boost
It is easy to check and a very common problem