Mazda runs rough

I have a 2002 Mazda 626. Runs rough at idle while in drive or reverse with brake on sitting still, seems to not miss really if in park or neutral. Is somewhat jerky when accelerating also. code says cylinder 3 missfire. plugs look good, just put new plugs in last summer. plug wire seems to ohm good. Not sure what else may be wrong. Any ideas would be appreciated. Thanks

anyone have ideas on the rough running mazda ?

i would check the plugs again and make sure plug #3 has good spark, might have a bad coil if its coil on plug engine or could be a vaccum leak or low compression

Bunch of smart guys here. http://mazda626.net/