[summertime_civic]

Just within the past few weeks my '95 civic (d16z6) has developed a problem idling. Once it has warmed up it only want to idle between 500-600 rpm. Before it has warmed up it seems to idle fine except for the constant bogginess when I try to get things rollin' (which also started at about the same time the idle screwed up. It doesn't seem to pull until it reaches about 2500 rpm. The ecm is not throwing any codes and I've tried adjusting the Idle screw and the throttle cable. Of which the cable has since been loosened to prevent stretching. I just can't seem to figure this one out on my own. Any help or suggestions would be greatly appreciated!!!! Thanks in advance!!!