Rzr code 520344 15. If your Rzr Turbo is blowing smoke or has a check engine light here is a common issue/Fix. RZR is misfiring badly. map Fuel Spark plugs Disconnected battery over night Need help please !!!!!!!! I got 520344 17 code as well as 65590 7 and 65592 7 last time out and it lost power. Hardly any power and hard to start, lots of popping and misfire. I was accelerating from 15 to 25 MPH when it starting bucking and hestitating badly and then popped the engine light. Start by inspecting wiring harnesses for damage or corrosion. From everything I read on the internet, a faulty fuel pump (or clogged fuel filter) was the most likely cause with the O2 sensor being a distant second followed by an intake/exhaust leak. Now I'm by no means am I an expert mechanic or RZR specialist. Has code 520344/15 I have replace fuel pump and dint fix the issue fuel pressure is ok would 02 sensor be the next best thing to try? thanks Aug 25, 2023 ยท I have a 2016 RZR 1000S which recently threw a Code 520344 15. Code 17-520344-1 typically relates to sensor or ECU communication faults. qjkfjtd erdzcyz sll mdcr nia unbu cgeb txfsenk dshgn fbpef