yo i had this problem with all my hondas if ya go out to ya car and take off ya intake look inside the throttle body there will be a hole on the bottom inside put ya finger over this hole blocking all the air from sucking in . ya car should idel considerable lower aroung 900 rpm if so you could either by pass this valve by looping the coolent hoses togeter and putting a peice of thin card board between the holes this is right under the throttle body if ya dont understaind what im talking about then pm me a number so i could help ya further