2015 American sportworks TW400 extremely sluggish 0 to 25 mph
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By Joe Rizo
Hello All,
We have exhausted all possible troubleshooting steps, now we are in need of some help.
Vehicle cranks but will not turn over. Things we have either replaced or tested and are now known good:
1. Fuel pump (new)
2. Fuel sensor (new)
3. Fuel injector (new)
4. Battery (new)
5. Spark plug (new), spark tested
6. fuses (12v to all)
7. we have 12v at the injector module and 11 ohms resistance
8. we have fuel in the fuel line to the injector
9. we have fuel at the spark plug
10. we have injector pulse, verified with noid tester
11. brake safety switch tested (couldn't find a separate switch assuming it is using the brake light switch)
12. seat belt buckled and seat in place (again, not sure if this model has these features)
13. replaced air filter
14. replaced several air hoses
15. flushed radiator and replaced with diluted antifreeze
16. Drained and cleaned the fuel tank prior to replacing the fuel pump.
Any ideas, we are open to....Help!!
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By A P
Hi
I have a 2022 hisun sector eps 550. 30amp fuse is blown for eps. Checked the motor and it’s fine. Opened up the controller and found a bad diode. Dealer wanted 500$ for the controller. Just posting this in case it helps someone. I couldn’t read numbers from the old one so just took a guess and replaced it with a 100v 3amp diode.
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By kmiller7351
I have a 550 colman and i am trying to get running as it came from another military base. It came without keys battery and all fluids drained. So how can i bypass key switch and can i use a temp battery to start it. I want to make sure it runs first before i replace key parts. I added oil, brake, antifreeze still working on other fluids. not sure if i am missing any electrical parts. Battery in picture is junk i think. not sure what the connector is. probably will have to buy an ignition cylinder in future. So any guidance is appreciated.
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By Homeowner A
Have an issue all the sudden where the UTV will cut out randomly mid range throttle and under load. Light consistent throttle on fairly flat ground no problems. If you quickly change throttle position sometimes it will bog down and cut out, splutter, etc. Floor it or let off and it may do just fine. Going up a hill and adding more throttle as the incline demands, will cut out splutter and smell unburnt fuel. So far doesn't ever completely quit. If you let off it will idle just fine. A lot of times if you floor it, it will pick up and even get a boost of power. Changed to a slightly hotter plug to see if that would make a difference, but it didn't . Any ideas what might be going on and what to try next?
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