Hey guys,

Need some help with a fleet of '08 Polaris Ranger 6x6 Twins. Engine bogs down very bad between 3000-3800 rpms, but can get it going down the trail if I pump the gas pedal, even get it to cruise at 45 mph. It does backfire when letting off the gas pedal, but idles great.
I've tried plugs, plug wires, injectors, coil pack, air filter, and cleaning the air throttle body, and air sensor in intake boot and no difference. It does have a handbrake engine rev limiter that acted up before, but that's anything over idle. Any ideas, please?

 

does it do it in neutral as well or just on the trail. these must be efi models correct? are they in high elevation?

 

Sounds like the throttle position sensor needs re-set, have to hook it to computer to do this.

 

It does it in neutral as well as in gear driving. Sea level, and yes they are EFI models.

 

Is there a way to set the throttle position sensor without some sort of computer? Is there a computer out there affordable enough for part-time repair folks?

 

Tried the turning the ignition key on-off-on 3 times with a "WAIT" and the "END." No codes thrown, I presume?

 

Is no one else having these problems out there? 8 of 14 of these 6x6 are running like poop; same thing, bogging from lean condition, and exhaust fumes will make you pass out after gaining a severe headache (noxious)!

 

If 8 out of 14 are doing it, they must need re flashed , I'd say the dealer didn't set them up correctly, did you buy from the same dealer? Maybey they would send someone out to fix them, its got to be electronic/ computer problems.