Quantcast
Jump to content

2016 MSU500 with EFI problems

RES

By RES
in Massimo UTV SxS Forum

 Share

Recommended Posts

RES Newbie

RES

Posted
Posted

Hello All,

 I got myself into a project with an MSU500 that I got after a dealership had done a teardown on part of the engine. The previous owner had been riding and it died. i was told the dealer said that whatever was wrong couldn't be fixed, parts not available. A bolt for the Starter Clutch had loosened and vibrated out destroying the Stator and shearing the Woodruff key.  I have replaced all of that and put the motor back together. My problem now is I'm a Carb. guy never touched an EFI machine and I am getting no gas to the motor. I have confirmed that there is No gas getting to the cylinder, it fires with starting fluid. The fuel pump is working, i have pressure to the Injector and power to the Black and White lead on the Injector and the same on the Red and white lead to the ECM/ECU. I have been reading and trying to understand some of the troubleshooting steps that I've found. I also have done the test with the Injector pulled out and put in a container and tried, not even a drop of fuel comes out. I have also tried with a New Injector installed with the same results.

   I know this is not a Simple system but any input, or suggestions would be greatly appreciated. 

 

On a side note: This probably needs a new topic. but while i'm and this will sound foolish but. 

   Does anyone know where the Fuse Box is on a 2016 MSU500?? Believe me I've gone thru everything Under the hood. It is not in with or near the battery box as one manual says. Not one the firewall, inside out under the hood. I have spent hours working on both sides of the motor and Under it and I've not found it there. And after looking up a New Part for this I can't even find what are shown to be the correct Leads from the wiring harness to Plug into the unit.

I thank you All in advance for any suggestions or info that you might be able and willing to provide,

 

Robert

 

Link to comment
Share on other sites
  • 1 year later...
  • 1 month later...
farmer99 Newbie

farmer99

Posted
Posted

Open up your hood! go in your fuse box and the fuse is bad mine did the same thing the fuse works opposite on a massimo it is like a reverse grounding system! You'll have power to your pump but don't have ground replace the fuse and it will work!

Link to comment
Share on other sites
flydaddy Newbie

flydaddy

Posted
Posted
21 hours ago, farmer99 said:

Open up your hood go into the fuse box the fuse is blowing I had the same problem you'll have power to the pump but the fuse works in an opposite way like a reverse grounding system!

This was exactly what I needed. A new fuse and a new spark plug and it fired right up. Thanks. 

Link to comment
Share on other sites
farmer99 Newbie

farmer99

Posted
Posted
1 hour ago, flydaddy said:

This was exactly what I needed. A new fuse and a new spark plug and it fired right up. Thanks. 

Glade I could help! If the fuse keeps blowing replace the fuse box they go bad! Go on Amazon there cheaper

22 hours ago, farmer99 said:

Open up your hood go into the fuse box the fuse is blowing I had the same problem you'll have power to the pump but the fuse works in an opposite way like a reverse grounding system!

 

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.

Guest
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.

×
 Share
Go to topic listing

  • Similar Topics

    • doncaron
      Looking for part numbers
      By doncaron
      Hello everyone! 
      First of all I would like to thank you for the help with my timing problem, it was the chain. Now I’m looking for the part number for the wet clutch baring.  I’ve been looking for it but my side by side is a 2022 t-boss 550 and it’s not the same as a 2021. Can anyone help me please?
      thank you in advance again. 
       
    • Mark T
      Can I put a larger engine in my 400 colman UTV ?
      By Mark T
      MY 400 is gutless. I would like to know if I can upgrade to a larger engine ?
    • Xov
      New AMP Pro Owner
      By Xov
      Just received delivery of a 2024 AMP Pro.  Thought I'd start a thread with my impressions as I use it and learn more.  There doesn't seem to be a whole lot of real-world usage information out there on this model.  Hope this will help others as they research.
      Intended Use Cases
      Fire mitigation / slash removal from a 5 acre forested and well-gamble-oaked property.  The previous owners thought as much about fire mitigation as I do about fashion: not much. Snow removal Stump pulling General hauling (rock, lumber, etc.) Weimaraner energy depletion.  Wasn't an original use case, but a nice added bonus.  Experiences So Far
      Wasn't impressed that two of the bumpers on the underside of the bed where it sits upon the frame were missing.  The metal on metal contact has damaged the powder coating and the frame.  I expect a little better QC.
      I've only put a few hours on it, so not a ton to report on usage.  It isn't quiet; it's silent.  I can't even detect an electric note from the motor. I removed (and subsequently replaced) the motor cover noticed that the motor is German and made by Schambuller.  The motor controller is Italian and made by Dana TM4.  Given the operating specs of both I found on the web, I suspect both are higher quality than the previous Navitas (which is supposed to be decent).  The motor is rated at 25 hp and 71.5 lb-ft of torque.  It feels very powerful.  All the torque is delivered instantly, if desired.
      The bed is huge and has an electric dump as standard.  Great feature but would like it to go up a bit more.  Probably not feasible from an engineering perspective, but I want and I need ;).
      Power steering is nice, but vague.  Probably common to many UTVs, but I am accustomed to more direct results from input.  Plan early and plan often.
      In our first full day of usage, we hauled about 1/2 as much slash as the entire rest of the year when I was doing it by hand cart.  I may get fatter, but I'll also get more done.  After a few days of usage, the battery meter has gone down by 1/10th. 
      Until next time...


    • hdtran
      Hello from New Mexico!
      By hdtran
      Hy (pronounce he), just bought a Hisun Sector E1.
      I'll be using it to haul logs and stuff in the Sangre de Cristo mountains.
    • lonerider98
      2013 UT 500 won't go into reverse.
      By lonerider98
      At the end of last year my Coleman UT 500 will not go into reverse. I can hold it over toward the reverse to move it nut it won't lock into reverse. Anyone have this problem? Winter is just about over and going to have to get this resolved. Thank You!

UTV FORUMS

MORE SECTIONS

FOLLOW US ON

GET IN TOUCH

  • Automotive Webmaster
×
×
  • Create New...