Boozy

@Mech I got it working without issue today. Between the fuel pump and CPS it was causing issues with keeping the bike going. After I replaced the fuel pump the other day, the bike felt a lot "stronger" but still had a die out issue not stutter. Replacing the CPS kept it running...I checked the ohms on it yesterday before going and getting the part and it was reading 1326 which is way out of band. Also, when I start my bike up it starts on the 1st or 2nd crank not the 3rd or 4th

No problem Mech. Thank you for your help...I still have my dealer tech appointment scheduled for the 27th so I have another 12 days to look into the issue before having to take it in. The fuel pump that I replaced does seem to be working a lot better and keeping the idle RPMs at 1250-1300, just wish I knew what causes the machine to die once warmed up while riding. The other thing that gets me is that when it does happen to stutter and shut off no lights are triggered.

Correction, CPS is on the right side and I tried wiggling the connection for it without any issues. I also checked the wiring and it looks like they have it routed perfectly through another plastic wire conduit and nothing was worn on the exposed wires. I have seen others having issues with their machines shutting off once it has warmed up and when they wiggled the wires for the CPS caused the shut off. But I am going to get some sleep and look around again tomorrow.

Hey Mech, thank you for your response. The voltage is .46v not 46v according to the service manual which is what my 2019 is showing on CheckTech. My 2018 is showing between .36 and .38. I am not sure if that would cause a full issue, however, in the error code history it showed 636 - CPS possible fault. I have found the complete wiring diagram for the 570s and will try to locate the CPS on the stator case, which I believe is located under the left side paneling. - I did start it up and tried jiggling the wires as you suggested to see if anything changed but nothing happened. - I also checked out the wires and did not see anything that came loose out of the plastic tubing or seem to be damaged. - Next will be connectors and checking the CPS connections/continuity on those wires. I do think I tested the resistance which was 1106 ohms and the service manual says 1000 +/- 10% which would be roughly 900-1100. If I took a screenshot of the CheckTech outputs, would that help?

I have a 2018 Polaris Sportsman 570 EPS UTE, that when idling for a few minutes after being warm will just shut off. When I am riding I have to sometimes give it more throttle just to keep it going. RPMs at idle are around 1250-1300 but if I rev it and let the RPMs drop back down it will either stop around 1250-1300 or it will just shut off. I have replaced the spark plug, fuel pump (28-32PSI was the reason), cleaned out the exhaust for carbon build up (which there was none), replaced the battery, etc. I ended up purchasing a Check Tech and connected it to the machine and looked up error codes from history. One of the error codes that showed up was 636 - CPS (Crankshaft Position Sensor) might be faulty. According to the manual it says that it should be about .46v +- .003 and mine is running at .38. For giggles I took it out and plugged it into another machine and read the voltage and it was showing .45v. Does anyone have any other ideas of what to look for? This issue is driving me crazy. ATV is under warranty so I can get the parts but dealer appointments are a month out.

Are you trying to upload the 2017- 2019 Polaris Sportsman 400/570 Service Manual? If so, I found one finally in the downloads section...in fact, I think you were the uploader.

Thank you!

Make sure you can test drive it first and let it idle before and after. The eyes/demenor of the salesman will tell you if you are getting close to something when you start looking at things. At the end of the day its the dealers responsibility to make money.

With ESP

I am currently running a Winch on my 2018 Polaris Sportsman 570 for a snow plow too. I installed the Harbor Freight Badlands 3500 (over kill? maybe but strong) to move my KFI 60" plow.

Agreed. Yeah

Anyone got a manual for 2018 Polaris 570 EFI? I have been looking everywhere. Thanks in advance.

I need this for future reference but cannot download yet.