Does anybody think that I should replace the IAC? Would this be causeing my problem? I need to know so I can get it done soon.

Thanks.

98 Black Mystique LS Duratec V6 2.5L ATX K&N air filter, cleaned EGR, new Autolite double platinum plugs, magnacore wires, rebuit Sonnax valved VB, TSS, TPS. Mobil 1 5W-30