irregular idle on 2012 assault

[D8rider]

hey guys i went for a rip today and sled ran like a champ all morning then at noon on our way back home, when i park my sled and wait for the guys to get together my sled was revving at 2500 rpm, i blimp the throttle and didn't make a difference, waited for a bit then the sled idle down to 900 rpm for a bit and dies, fire it back up idles at 1400- 1500 rpm, hit the throttle and let off, 2500 rpm again, i checked my throttle cable slack and everything is in spec, so I'm thinking its my tps, since i have just about 2000 miles and sled has never been in the shop, whats your inputs guys? thanks

 

[winter brew]

TPS or poor ground at left front bumper bolt. Let us know what you find.

 

[D8rider]

i checked my ground today...bolts and nut was tight, no signs of corrosion, but cleaned them anyways with an wire brush, still has the same issues, so I'm leaning towards to tps, prob out of sync or spread terminal.