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Throttle/power issue
« on: April 25, 2023, 09:08:18 AM »
I have a 2023 uforce 600, only 25 miles. I have been taking it easy since I picked it up in March but the last few days anytime I get in to the gas it kills the power. It's like there is something limiting the power. Seems like anytime I go over half throttle. It's runs strong with no issues up until I  go over half throttle, then you can floor it and nothing, just revs a little bit, it will bearly climb the hill on my farm and won't go over say 20mph, rpms stay low as well.

I'd rather not take it to the dealer if I don't have to but not sure where to start. To me it asks like it's going into some safety mode and limiting the rpms. No lights or codes that I can see on the dash.
Thanks,

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Online NMKawierider

Re: Throttle/power issue
« Reply #1 on: April 25, 2023, 09:20:36 AM »
Wish I could help. I just don't know the U600 very well but it sounds like it's being limited for some reason. Does it do this in 2wd and 4wd and in H and L range? 
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Re: Throttle/power issue
« Reply #2 on: April 25, 2023, 06:08:29 PM »
I haven't tried it in 4wd yet only 2wd,  but it does it in both high and low.

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Offline NLSXSRIDER

Re: Throttle/power issue
« Reply #3 on: April 26, 2023, 06:46:44 PM »
check your parking break. make sure that it is fully disengaged.

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Offline Triton

Re: Throttle/power issue
« Reply #4 on: April 27, 2023, 05:50:15 AM »
Mine has 13 hrs and 30 miles.  After reading your post, took mine out.  In low range, it appears to be governed at 5050 rpm.  Tried high range and was 4700 rpm.  Put on seat belt and in high range was able to get 6100 rpm.  Since it still in break in stage, I felt like that was enough full throttle for the day.

Re: Throttle/power issue
« Reply #5 on: April 27, 2023, 10:53:01 AM »
I just did some testing this morning. On flat ground all seems fine, low gear will go to around 20 mph and 5150 rpms before power is limited. High gear had no issues on flat ground, plenty of power through 6100 rpms, will break the tires loose. My farm is in a river bottom and when I go up the hill in low I only have full power for a second then it limits me to 4600 rpms, frome that point it just bearly crawls up the hill. Floored it bearly hits 9mph in low. The hill is not that bad, it's up and old road that I drive a tractor up. Once it goes into this safe mode or what ever it is, it won't let you accelerate, and if you switch to high gear it carries over. You have to turn it off for a few minutes but will do it again as soon as I start up the hill.
I've tried normal and work modes and get the same. It's only been in 2wd, haven't tried 4wd, and the parking break is off, seat belt on.
Maybe I'm expecting more than I should but it doesn't seem normal. This is my first sxs but I've had several atvs in the past and they would spin all the way up the hill if you gave it enough gas.

And Triton, thanks for testing yours for me.

Re: Throttle/power issue
« Reply #6 on: April 30, 2023, 08:10:09 PM »
I just found this in the manual

"Limp home function: When a fault of the electronic throttle body or electronic throttle pedal is detected, the system will enter into torque limitation or limp home mode. If a fault occurs in the electronic throttle body, the engine will enter into torque limitation and RPM returns back to be idle state. If a fault occurs in the electronic throttle pedal, the vehicle will enter into limp home mode, and the top RPM will be less than 5000rpm."

Seems to be my issue so assuming there is an issue with the pedal or throttle body. I'll check for anything obvious tomorrow. Are there any known failures or issues in this area, any testing info for above parts to see if they are in spec.
Thanks.

Re: Throttle/power issue
« Reply #7 on: May 08, 2023, 06:53:41 AM »
In case anyone is interested or has the same problem, I fixed my issue. Evidently, 2023 models have a low gear limiter. After doing a lot of reading, I came across a YouTube video by RNG performance where he shows a way to delete the limit by pushing out a pin on the main wiring harness to the computer. I read in the comments that it worked on the uforce 600. Took about 10 minutes and now I have no issues and full power running up my hill.

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Offline Earl Wright

Re: Throttle/power issue
« Reply #8 on: May 08, 2023, 10:31:00 PM »
Only on 23's?

Re: Throttle/power issue
« Reply #9 on: May 09, 2023, 11:09:20 PM »
That's what I determined from the limited information I could find.

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Offline Earl Wright

Re: Throttle/power issue
« Reply #10 on: May 10, 2023, 08:02:26 PM »
Ok. Not having any issues was just wondering in case it was possible for more power.