surging idle

a friend of mine just bought a 92 h23 lude it started idling funny it goses from 1000 to 2000 up and down consistaly with no change we checked all the vacume lines i think it has a board throttle body thank you for any help you check this out yet??? if not it is going to be a valve i dont know what exactly its called but it is under yout throttle body i believe, my b18a did that and people told me it was that so i took it off three bolts and two small coolant lines, then there are two cross screws ond the valve take them off and in the inside just grab a flat tip and push down on the screw looking thing and tighten it by pushing the white gap to the right. hope this helps


Senior Member
It sounds like the IACV. On a 92 i BELIEVE it is underneath the throttle body, otherwise check on the backside of the intake manifold. Take it out, let it soak in solvent, move the plunger back and forth a few times, clean the screen and you should be good.


Senior Member
its the idle controll valve,yes its undernieth the throttle body.there about 18 bucks .if you have a b16 you can get one off of a 1990=1993 integra.i just replaced mine yesterday. for a quick fix loosen those three screws and slide something between them and see if it stops.i used aportion of a bk cup"not recomended" or take the intake off and there should be a hole.turn the car on and plug the hole with your finger just let it idle.if the idle drops to normal,cap off idle control valve with something sturdy,not a cup. i just went through all this crap with in the last week except my car was idling at 3000 and wouldnt stop.