mkibbe

2014 king quad 750 irs Powersteering

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My 2014 750 king quad stalls sometimes when I touch or turn the handlebars,the problem has gotten worse,my machine has 475 miles and is only trail ridden,I have a new factory battery and i have 14.2 volts when the quad is running and 13.3 on the battery when not running,also using a multimeter there is no change in volts when turning the bars until it does stall,If I pull the 40 amp power steering fuse it will not stall.......I've been told its the ECU,Hate to buy one if thats not the problem,but its kinda leaning towards that,,,,,need some opinions.

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First off, love the quad! The rims/tires and color scheme looks great. Looks like you have some aftermarket guards/bumpers on there, correct? Post some more pics, maybe even in the gallery https://www.quadcrazy.com/gallery/

As far as your power steering issue, I'm not sure if its the ECU. When you are getting the electric power assist, it should be consuming or drawing on the electrical system and the fuel injection may be cutting out from not enough power. Maybe it's your voltage regulator?

 

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Thanks for your comment,Yea I put bumpers, pro armor and aluminum products skids,Elka shocks,ect,ect......here's a few more and my other toy.......how do I check my voltage regulator......

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I just did a check with a multimeter while it was running,14.2 to 14.6 running,then i slowly turned the bars just a enough to apply pressure and my voltage dropped to 12.7 volts,does anyone know the specs that the power steering uses voltage wise.......but as i said above if i keep it revved it won't stall....

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Hey I'm having the exact same issue have you found a fix for it?

 

Edited by Ryan H

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I would suspect the  voltage regulator  or the  alternator. There's also the  possibility  the  power steering is drawing too  much  power  for some reason  and the  momentary  voltage  drop is causing the  ignition or  fuel  injectors  to  cut  out.  When  you have the  motor  revved up  the  alternator is putting  out  more power so  you wouldn't  get  the  large  drop  and  cut  out. I don't think  it  is the  ECU.

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9 hours ago, Ryan H said:

Hey I'm having the exact same issue have you found a fix for it?

 

Yes I found my problem with the thanks of a good knowledgeable friend all you need to do is unplug this ground under the seat,for some reason with this plugged in its grounding out the system.....

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