What was wrong with your rzr with code 520344 17? I 1st got the 65590 and 65592 codes. Cleared them by holding the throttle at 4200-4400 rmp's for about a minute. Then I drove it around the block. parked it washed it and started it back up. New Code 320544 17 . Would love to know what you have found. thanks. This unit had code 520344 stored. If your Rzr Turbo is blowing smoke or has a check engine light here is a common issue/Fix. This unit had code 520344 stored.
2018 RZR 1000 highlifter Replaced my o2 sensor with this code, Light went out for a few weeks then came back on. "Only a few hours ride time" Changed my air filter and it went away. Filter didn't seem all that dirty but caused enough restriction to mess with air fuel ratio.. SPN 520344 FMI 17 = Adaptive Fuel Correction Too Lean. This code is caused when the ECU has reached a max limit when adjusting the closed loop fuel trims. This code can be set due to an exhaust leak, Intake system leak, or faulty O2 sensor system." If the code will not reset then it is an active code and the issue is still present.