thanks man, a mech i know suggested coil packs and egr, found these write ups for future reference

http://www.fitfreak.net/forums/fit-d...e-answers.html
http://www.insightcentral.net/commun...?t=653&start=0
http://www.hondaprelude.to/forums/sh...your-EGR-Valve

and one about valve clearances
http://www.fitfreak.net/forums/fit-d...clearance.html