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Offline Mike102P

Re: UForce 800 low speed drive ability hesitation bog lean condition FIX
« Reply #45 on: August 30, 2022, 07:49:36 PM »
Quote from: terbob3 on August 30, 2022, 01:37:45 PM
Quote from: Mike102P on August 29, 2022, 10:50:06 PM
Bought a used 2019 Uforce 800 about a month ago (only 30 hours).  Love the machine, but was kind of annoyed by the hesitation/jerky starts from initial throttle. Found this thread while researching the issue, ordered the Z800 ECU #0800-174000-2000 and installed it today.  I'm a little on the fence with it.  Seems to have smoothed out some of the issues at initial throttle, but not sure it was worth the $375 price tag.  Just wanted to let others know about my experience and it may or may not make a world of difference. 

Quote from: terbob3 on August 30, 2022, 01:36:51 PM
Did you order 0800-174000-2000 or 0800-174001-2000? The first one is what I HAD in mine 2nd one what I replaced it with

I've not seen part number 0800-174001-2000.  The one they told me about at the local store was the same one others have listed here and what I've seen online, 0800-174000-2000, for the Z800 

The original ECU in my 2019 UForce 800 is 0800-174000-10001.
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Offline NMKawierider

Re: UForce 800 low speed drive ability hesitation bog lean condition FIX
« Reply #46 on: August 30, 2022, 08:44:52 PM »
It may be that not all your issues were ECU-related. May have one of those thousands of bad idle air control valves and/or TPS....and if yours has peddle-by-wire...lots of those came from the factory bad.
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Offline terbob3

Re: UForce 800 low speed drive ability hesitation bog lean condition FIX
« Reply #47 on: August 31, 2022, 11:44:20 AM »
Quote from: Mike102P on August 30, 2022, 07:49:36 PM
Quote from: terbob3 on August 30, 2022, 01:37:45 PM
Quote from: Mike102P on August 29, 2022, 10:50:06 PM
Bought a used 2019 Uforce 800 about a month ago (only 30 hours).  Love the machine, but was kind of annoyed by the hesitation/jerky starts from initial throttle. Found this thread while researching the issue, ordered the Z800 ECU #0800-174000-2000 and installed it today.  I'm a little on the fence with it.  Seems to have smoothed out some of the issues at initial throttle, but not sure it was worth the $375 price tag.  Just wanted to let others know about my experience and it may or may not make a world of difference. 

Quote from: terbob3 on August 30, 2022, 01:36:51 PM
Did you order 0800-174000-2000 or 0800-174001-2000? The first one is what I HAD in mine 2nd one what I replaced it with

I've not seen part number 0800-174001-2000.  The one they told me about at the local store was the same one others have listed here and what I've seen online, 0800-174000-2000, for the Z800 

The original ECU in my 2019 UForce 800 is 0800-174000-10001.

My apologies. I had it backwards. 174001 was stock unit.
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2021 UForce 800
2022 Uforce 800
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