CA Stutter when warm

OKay so recently my car has been acting up, when the engine is cold or not quite to operating temp, it runs fine, on the highway - fine, spirited driving - fine. But once its warm it begins to stutter and almost stall at idle, and just putting around town it does the same thing. I almost have to dump the clutch when its doing this. If I rev it up to around 3.5k then it settles out momentarily and I can take off. ANy ideas? I’m kinda thinking leaking injector or something of the sort.

Coolant temp sensor.

agreed.

“Standard” (brand name) part # TX18.

Sweet thanks guys, I’m going to order it tomorrow.