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2010 Polaris ranger 500 efi
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Discussion Starter · #1 ·
Have 2010 ranger 500efi runs rough at idle and stalls sometimes any ideas of what it might be ?
 

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Brad, could be>>>>>>>>>>>>>>>>>>>>>>anything. Bad plug, fuel pump, bad gas, plug wire, valves to tight, sensor wire bad, dirty air filter etc... What have you done to try to rectify ?
 

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2010 Polaris ranger 500 efi
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3 Posts
Discussion Starter · #3 ·
I just bought it it was recently in the shop for the same issues . They changed out ecu on unit. I have checked plug looks good. Only runs rough on idle. Once I bring rpm up it does smarten up. Pulled air filter tried running it no difference. Not to familiar with the rangers. I did pulled sensors on throttle body and clean. TPS I guess to can’t do nothing with as it’s a sealed unit. Kinda checked over wiring tried wiggling it around trying to get it to change while unit was running .
 

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2010 Polaris ranger 500 efi
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Discussion Starter · #4 ·
I did try adjusting tps just by sound not actually measuring volts. And I thought I had it as it did smarten up a great amount. Went back a few days later and ran it and it started doing it again.
 
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