accords and preludes are imfamous for having FITV and IACV problems. First, on the side of the throttle body there is a brass colored plate. remove the plate. There is valve inside. turn the white plastic piece clockwise until it stops. If that does not fix it, then remove your IACV (front center of IM) and clean the screens out. check to see if it is sticking if possible. If it STILL has a problem (other than vaccum lines which you should have checked first) then it may be one of the gaskets, either the IM gasket, or one of the two secondary runner block off plate gaskets. Also check the O-Rings on the injectors. I also had a problem with a few of my H22A's breaking IM studs, which will eventually cause a vaccum leak. The EGR valve gasket can also blow out (although rare).Originally Posted by an0therh22
Reply With Quote