2001 Acura TL 3.2

I filled up my gas tank and now only after three trips my car feels rough when I start it. When I am at regular freeway speed it feels normal. When I turn on the air conditioning the rough feeling begins. I recently got a new radiator and the air adjustment work fine. I am up to date with oil changes/basic maintence. This is the only concern "rough idoling.

 

Try a new IACV, or just try cleaning it. There's many threads that explain the installation of this part so I'd start there.