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Offline Bloveland20

Re: 2021 uforce hard start, rough idle and dies at idle
« Reply #45 on: December 08, 2023, 10:10:18 AM »
Well my uforce 1000 is finally fixed. I Want to give a shout out to NMKawierider. Via countless pm he helped me diagnose the problem. The issue was actually a stuck fuel injector that was dumping fuel into cylinder one and intern causing the bank one 02 sensor to faul which then due to the reading it sent to the ecm the computer called for even more fuel. I spent days taking the machine apart as I initially thought it was a wiring issue. While I did find one chaffed wire, it didn't have anything to do with it throwing codes and running rough. Now time to put all the plastics and skid plates back on and take it for a ride down the rd. Thank you again NMKawierider!!!!!!   

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Offline Bloveland20

Re: 2021 uforce hard start, rough idle and dies at idle
« Reply #46 on: December 08, 2023, 10:44:21 AM »
I should of mentioned the cause of the stuck injector after only 100 miles... old fuel.  100% my fault. This past year had been extremely busy and just at in the garage. I ended up draining the fuel and flushing the lines.  I then added a inline EFI rated fuel filter under the driver's seat for easy access. Take my mistake as a warning: don't let your fuel get stale in your machines and I highly recommend adding an inline filter if your machine doesn't have one... they are way cheaper than injectors.

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Offline NMKawierider

Re: 2021 uforce hard start, rough idle and dies at idle
« Reply #47 on: December 08, 2023, 01:02:50 PM »
I think I remember seeing that the UForces only had what's on the pump intake for a filter nothing in line like the Zs have so yeah..but a big steel EFI fuel filter inline people. Can't hurt.
2015 Z Force 800 53/Trail EPS
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