My 18 turbo will do that if I power brake it will set ck eng light and limp mode till I shut it off.

 

Interesting - but I am not power braking when it happens. Mine just randomly goes into Limp mode when running fast in the trails - 40-50mph. Can't really pin down to any one thing? I keep thinking it is electrical.

 

My 2918 Rzr s4 900 EPS has done it twice this summer. I called the dealer and they told me my belt probably slipped and engine misfired. Told me to check the belt if it was worn or signs of slipping. Did that, compared it to my new spare belt and they almost look the same, hardly any wear, so I did blow a lot of dust from the clutch and reinstalled the original belt. Oil lwas fine, Coolant was fine checked for loose wires, found nothing. When the engine light did come on the first time only for a couple seconds, nothing happend, second time it put engine in limp mode. I stopped and restarted and never did it again , so far, 2800 miles on it. Anything else I should be looking for????????

 

Milef33, that probably is a slipping belt. If you look at the engine codes it will be one or both of the misfire codes. Turning the engine off then back on and driving for a bit around 4000 rpm resets these codes until the belt slips again. Just replace the belt. It doesn’t take much of a flat or polished spot to make the belt slip.