Originally Posted by miedosoracing

Nope, you aren't alone. My parents old 91 wagon and my 93 accord 10th ave had it. Now, I have mine stopped completely, but I sacrificed something to get it. First, there is a screw that is located at the throttle body, right underneath the hoses that go to the map sensor. I turned it out about a full turn or two, and now it idles really high when I turn on the car (about 1500), but then when it warms up alittle, it doesn't vibrate, and it idles at about 800 RPM. The problem stems from the car going down to about 500-600 RPM at idle at a stop light. So now mine idles good, but at start up I have to sit there for about a minute and let it idle down. Then I am good to go. I haven't tried it yet, but I believe that changing the timing alittle could change it possibly too. Then I could get the airscrew back to normal. I haven't messed with it yet, but plan on it someday.