Well i was having problems where the machine would run fine, then once warmed up, would sputter and die randomly... I sent the stator out and it passed all tests thrown at it. I put it all back together and it did not help. I then started checking all sensors, The one on top of the air intake tube was loose, so i zip tied the sensor so it would not wiggle loose... seemed to help a lot... coincidence, i dont know...

it drove great for 10 miles, or around 3 trips, however when it warms up now, i can be driving, come to a stop, and the machine hi-idles and starts to drive away... RPMS get to around 1900-2000 rpms... I can blip the throttle, and it will not drop down. i turn the machine off since it becomes unsafe and i want to save my belt... It starts right back up and all is normal....

I am afraid to leave it idle as i fear it will run away... what could this issue be?

It is a 2007 sportsman 500 efi deluxe, has 80 hours and 600 miles on it

 

The sensor you zip tied down is the MAP sensor,check that the rubber grommet it slips into is in good shape and not split,can cause erratic idling,plus can be the harness connector or wires leading into sensor. Repair kits are available.

 

Having same problem with my 08 500 EFI. I am about to go chekc it out now. I have been reading about the T-BAP issue and will start there. I will post what I find.

TB