i just finished doing my swap its an ls in eg .when i start the car it revs up to 3k then it goes down to 1.5k and then back to 2k.it revs by it self.i tried cleaning the iacv and it didnt work .anyone could help me out please? here its a video

 

put a cork in the lower hole (forgot the name) in the tb. i did it on my eg... yes its ghetto... but it stoppes that effin surge.

 

vacuum leak!