Cylinder #2 misfire

[EJOUIE]

As the title states, my car is misfiring on cylinder #2. The misfire occurs right after startup (doesn't matter whether is a cold start or not). It will miss for about a mile or so of driving and then, like a lightswitch, it goes away. It will do this every time I start it. Here is a list of some things that have been checked/replaced already.

Plugs
ICM
PCM
Plug wires
Coils
Injectors
Seafoamed

Any ideas on what could be causing this?