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Latest Posts
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UPDATE: Got the new ECU today. Installed it and the engine fired right up ! Success... but it will only idle for about 30-45 seconds, then dies like someone cut the power. Cycle the key and it fires right back up, and I'm talking immediately. Runs another 30-45 seconds, then dies again. Plenty of fuel pressure, will test again tomorrow to get actual numbers. Right now I'm thinking Idle Air Control. I'll remove that tomorrow and check it out. I have no idea how long the machine has been sitting without running. Good news is though, the engine sounds strong when it is running. I'll report back on any progress. -
Hi Friends, Newly produced 650, 1100 rear differential will be available soon. If anyone need these differential, please send email to me at [email protected]. Some CV Axles for Joyner is still available but inventory is low. you can also contact me if you need. Thanks Casey / Leaf Asia 2025-03-28 -
By Homeowner A · Posted
I've been having misfire issues with my UTV 400 when it gets warm and I've thrown all kinds of parts at it so far with no permanent resolution. Today I removed the O2 sensor and it is black on the end. To me that means it's running rich and/or the sensor isn't working. I replaced the sensor with a new one and will see how it goes I guess. With EFI, I'm wondering why the sensor would be this way with low hours and mileage? Is there a way to adjust or lean out fueling on these? Thanks in advance. -
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By Homeowner A · Posted
I was randomly and briefly able to connect to my Coleman UTV 400s ECU the other day twice and haven't been able to since. When I was able to access it, I found the following codes and wondered if anyone may know where I should start or what I should look at? P0031 - O2 Sensor Heater Control Voltage Low P0107 - Manifold Absolute Pressure/Barometer Pressure Voltage Low P0113 - Intake Air Temperature Sensor Voltage High P0118 - Engine Coolant Temperature Sensor Voltage High P0650 - Malfunction Indicator Lamp (MIL) failure
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