Jump to content

my new 2017 HISUN 400HS and the engine sputters over 10mph


Recommended Posts

I bought a new HISUN HS400 EFI recently. Still in break-in period with about 15 miles on it. This thing starts and runs just fine, like new, but at about 12mph it sputters/stumbles/boggs and does not want to go any faster than 12MPH. 
Does not sputter in neutral and revs very well in Neutral. 
Any thoughts on what is wrong?

Link to comment
Share on other sites

Dummy me. I was pulling my hair out on this problem for no reason. If I was a safe driver and wore my seatbelt I would have already solved this, LOL.  

I simply took a ride with my seatbelt on. Problem fixed, goes as fast as I need now.  For the heck of it, I did unplug the seatbelt indicator wire and it lets the vehicle go full speed also.  So, to recap, apparently there is a speed limiter with the seatbelt indicator.

  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...