95 celica high idle, i have a 95 celica with spiradic idle Options

[Celica_Rob]

My 95 celica has a k2n filter and and airbox elim tube to intake, im getting a adle at about 1800 -1200 depends on heat i guess,some times it just all the sudden runs perfect then will click and idle high again,when the idle is correct the car drives perfect, when high idling it jerks when you let off the gas and hit again, sometimes it has a slight miss then when you give it gas it goes away.When you start it it stumbles until you rev it up a few times kinda like its running rich, then raises idle,there are no check engine lights on and dont know about any engine swaps.please help its making me mad, car is quick when runs right. thanks robert