Quantcast
Jump to content


bad ecm

jamesrulz

By jamesrulz
in Joyner UTV SxS Forum

 Share

Recommended Posts

jamesrulz Contributor

jamesrulz

Posted
Posted

Has anyone had bad ecm. I think I do because my fan runs all the time and it leans out and doesn't respond to O2 signal quickly. I replaced the O2 not the issue I have a afr gauge on it and it goes lean but the computer doesn't respond. I can drive part throttle and the engine dies and comes back back and forth fuel pressure and ignition are good. Anyone have a issue like this or have any input?

Paiute3 Proficient

Paiute3

Posted
Posted

Trace all your wiring from O2 switch all the way back to the ECM. Look for rubs that could cause shorts in your 02 harness.

We had a similar problem with our T4 and the wire was rubbing on the starter and all of our wires had melted together in the 4 wire harness.

Also the dealer let us pull our ECM and he put it in a new trooper just to make sure it was not a ECM problem. Good Luck.

George

jamesrulz Contributor

jamesrulz

Posted
  • Author
Posted

Ya its the computer its sealed up tight like a screen door. My dealer changed them before just like dropping your phone in the water. I tried it all to and I am a mechanic its the computer buddy almost positive got one coming

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

    • Rschrem
      2010 700 Hisun starter issue
      By Rschrem
      Hi, my 2010 Hisun will crannk but comes to a stop and only clicks.  It has new battery and solinoid. Battery connections all seem good. Any ideas what the problem is? 
    • Pick a name
      Shifting issue
      By Pick a name
      The Axis 500 will not shift into low or reverse.  I have high when it should be in low and all the other places it is reverse.  The gears in the shift cover are fine and I shifted it when the cover was off and yet no change (so it can't be the shifting mechanism gears).  I t has been difficult to get it into low for awhile.  But now it is either high or reverse, no neutral either.
    • KWinTX
      Information on 2024 Hison 550x Stryker with a No start Issue
      By KWinTX
      I just bought a new 2024 Hison 550 Stryker 2 months ago. this is the second time I have had this issue.  It only has about 20 hours on it. The last time it happened we took it back to the dealer. it was a fuse.  Since we live three-hour time driving there and back. I would like to find another solution if possible.  I have tried all the fuses that seem to have anything to do with starting.  Currently checking the battery. The battery is new. it came with the unit. It is probably 6 months old.  the UTV has all power to everything electrical. lights turn signals and radio all work.  When trying the key to start . it is 100% dead. as in it doesn't even click.  There is a low whirring like the fuel pump is turning on though. The Unit was running and driving just fine.  we shut it down for the night. The next morning my wife found it in this condition.  Thanks for any Ideas or solutions???   Otherwise, it goes back to the dealer tomorrow. Just hope I didn't buy a lemon. Great little UTV when it does run.😅  anyone else ever have this Issue..? 
    • ToughLuck
      2021 Massimo MXU 1000 Runs Rich
      By ToughLuck
      I have a 2021 Massimo MXU 1000.  Last winter the front drive shaft sheared off inside the motor and it was cheaper to buy a new motor than to take it apart in order to remove the front drive shaft that was broken inside the case…
      Now it is running rich, seems to maybe be geared too high, does not accelerate well once you hit about 28mph.  I’ve replaced the O2 sensor.  MAF is next (I accidentally ordered the wrong one, but when I removed the old one you can clearly smell fuel).  
       I’m not a motorhead but I can turn a wrench.  Any ideas how to get this motor optimized?  The motor has about 300 miles on it.  I broke it in as recommended in the manual. 
    • CapnWalleye
      2016 Hisun 500 runs rough no power
      By CapnWalleye
      Just picked up a Hisun 500 that had shift issues (corroded fan gear) which I fixed. It also didn't seem to be running smoothly then all of a sudden it got worse. It seems to miss on both idle and when pushing the gas pedal to the floor and doesn't seem to be running at full power. I've been working with a local person who is walking me through some steps, but I'd like some input from this group as well. What I've done:
      - drained the fuel tank and replaced it with 93 octane fuel and added heet to help with any water problems.
      - replaced the fuel injector.
      - disconnected the battery (several times) to allow the module to reset.
      - set the valve clearance, both intake and exhaust, within specs ... intake was tight but exhaust seemed fine.
      - replaced the battery.
      - replaced the O2 sensor.
      Nothing has helped. Not sure what the next steps are, but would appreciate any expertise that can be offered here.
       

UTV FORUMS

MORE SECTIONS

FOLLOW US ON

GET IN TOUCH

  • Automotive Webmaster
×
×
  • Create New...