99 GA starting problem

I'm having a strange problem with my 99 grand am. It is hard starting and I have to give it some gas while starting or it immediatly stalls. When it starts, the rpms go up and down for 10 seconds or so and then it runs perfectly. It's not as bad when the car is cold, but it still happens. When the car is warm, it's much worse. It is the 2.4L Automatic. I have recently changed the fuel filter, plugs, and wires (or whatever you want to call those stubby things).

Welcome to the forum. I would change your throttle position sensor. All symptoms are indicitave of it.