Found this also thy have a recall on it http://www.alldata.com/TSB/24/992426aw.html fourth one down you can get it fixed for
free sorry.http://www.honda-tech.com/zerothread...int&id=1879684. You may still have found a possible bad egr valve with both of these problems its really fudged up your idle. Have a nice day I'm going to play Mario now.