2010 Polaris Ranger Crew LE 800 EFI 4x4

Hi, I am having issues with my TRX350D fuel pump.  It suddenly stopped running so I have replaced all the fuses and cleaned all the terminals.  I have fitted a new pump, fuel cut-off relay and rectifier.  Still nothing!!  The pump runs when attached to a battery.  The engine will start on the choke and the filter fills with fuel but it will  not rev and dies when the choke is closed. I have power to the relay but nothing at the pump black/white wire when cranking the engine.  Any ideas where to go from here would be very much appreciated!!
 

View File 2003 Polaris Ranger 400-500 service manual
2003 Polaris Ranger 400-500 service manual
Submitter rgeiser Submitted 04/18/2024 Category Polaris UTV  

If you are a new member, why not introduce yourself? This community thrives and grows with you and all our current members! We all want this community to grow and encourage new member registrations. That being said please help out QuadCRAZY by inviting other atv'ers to the community.
QUADCRAZY NEEDS YOU!

First issue was fuel pump wont start once ignition has been turned on. Replaced the pump as I had one on hand, than noticed no power so replaced the fuel pump relay as that was were i traced the power to. Still nothing so further inspection looks like signal is coming from the PCM (FLR B20) but not switching the the brown wire to the fuel pump. Ive checked the operation of the bank angle sensor and it appears operational. Fuses and wiring all appear OK. The engine stop relay also tests OK. Ive been through the repair manual and diagrams but to no avail. Fully stumped, any tips would be helpful. Thanks
Col

I'm assuming, it's alright to test the engine after adjusting valves without the rear axle installed? Can someone please verify this? I'm waiting on axle parts and wanting to get that done while waiting. Thanks! 🙂