My em1 idles high when it starts up, when i hit vtec, and when im driving on the highway for a long period of time. It usually goes away when when i turn off my car and start it back up, then it works its way back down to normal idle. I bled my radiator and cleaned out my iacv which helped alittle but its def still there. Any ideas would be appriciated.

 

Oh yeah...its not throwing off any cel's either.

 

anyone?

 

i cant think of the name of it at the this time but there is a little box looking thing on the back of the manifold take it off and clean it, thats what i did and it helped alot with idle, but if the car is cold it will idel high u know that

 

i already cleaned out my iacv.