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By HISUN Sector 750 EPS Failu
"Mrs. Smith" doesn't like how loud our Sector 750 is. On a HISUN forum someone said the same thing about his 750. I haven't given it much thought because I've been more focused on stuff that has broken.
So, I used my decibel meter to check ours out. 4000 RPM, Low gear, under 20 MPH . . . . 97 decibels. That's above most ordinances, even state boat noise limits.
AI Overview Ninety-seven (97) decibels is considered very loud and dangerous to hearing with prolonged exposure, roughly equivalent to a newspaper press, a loud nightclub, or a snowmobile. At this level, damage can occur after just 30 minutes, necessitating hearing protection -
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By jugliner
I have a fuel injected UT400 that will start and idle, but surges and sputters at higher speed. It has been sitting for 2-3 months and was fine when parked in garage. I assumed it was a fuel/air problem and pulled the throttle body and cleaned it up. I've ended up replacing the injector, IAC valve, MAF Temp Pressure Sensor, and fuel filter. I've also checked the spark plug, Still surging. I reset the ECU after every component swap.
I plan to pull the throttle body again and look evrything over for any visible leaks, etc.
Any suggestions would be appreciated on next steps. The problem developing after sitting makes me think it should be something simple, but I'm stumped. BTW the fuel was fresh and treated with Stabil.
Thanks.
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By Jamesshoop1
This was happening to me regularly with the original battery pack, I would drive a few yards and power cut to the motor, no error code, dash works, lights etc, just no drive. Brake lights not on so I don’t think it’s a switch thing. Sometimes it would go back to normal after a few day sitting in the barn. I ended up changing to lithium ion battery 100amp 48v and the problem completely went away for two months so I figured it was something worth the old battteries. Now it’s doing the same thing again, I’ve removed every main electrical connection, cleaned it good, and put it back together. Battery is at100 percent and good voltage. What is interesting is it doesn’t matter how much power I’m drawing, if I’m just creeping along in low or flooring it in high it stops after the same amount of time, about 7 seconds. If I let go of the acceleration right before the 7 seconds I can keep driving like that indefinitely but obviously that’s pretty annoying. Or if I switch immediately to reverse I can back up and go back to F without cycling the key. Has anyone else run into this? It really seems like a safety switch issue to me but unsure what else to check.
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By TimsBrickHouse
DO NOT BUY ANY THING FROM HISUN Period! I had the axis 700 for 2 months when a rat or squirrel ate both wiring harnesses. (Main & ECM)Wanna know why? Because the manufacture of these things in their infinite wisdom use either, a soybean oil or a peanut oil to run the wires through the the wire loom. Hmmm i wonder why they would be inclined to eat the wires. So now I have $10K machine that I've only had for 2 months when all this happened and they will not warranty it at all. It is going to cost me $800 to $1000 to get this fixed. Here is a link to a video showing where we took our Hisun notice how many are there:
https://photos.app.goo.gl/2FdniAoCyvTJMKae7
So counting mine, there are 16 of Hisun Axis on the lot that i took in for authorized dealer, with the exact same problem, plus other troubles that the mechanic explained to me. This particular place told me they are not going to work on them anymore. I will be posting this in as many places as possible to reach the masses. I hope its worth Hisun!
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