Idle Air control Valve?? or something else?

[Itsjb89]

My car Revv's High and low while in neutral.
My buddy told me it was the air control valve.. is that it?


Will a bad iacv throw a check engine light on?
i have no lights on..

i have a 96 honda civic dx d16y7 manual


I found this...

http://ecomodder.com/forum/showthread.php/honda-iacv-explained-967.html

[cheapo23]

could be would have to check it