so i replaced my h22a4 with an h22a and while it was out i removed the iab plate from the intake maninfold. that was the only modification i made to anything. when i start the car it revs to 4500 sometimes 5 and then drops to about 800 then keeps repeating itself. i thought burping the coolant would fix it but now i think its cuz i have gotten a tune yet. anyone have any insight? i tried everything on the idle faq