Rzr 800s Idle problems

I have a 2009 Rzr 800s and when the fan kicks on the engine stumbles then stalls out... From what I've been able to determine one possible cause of this is a dirty T-map which doesn't tolerate very well an aftermarket foam-oil type air filter...I've now switched to a OEM filter element...

My question is whether I can simply replace the t-map device (sold on ebay) without having to do any kind of reprogramming, which would likely be beyond my skill and tool set, and what is involved to do this??

Thanks, Bunkysdad