I think I've figured out part of the cause of my rough idle. One of the Honda techs at work said it seemed like my car may be running too rich. The plugs are quite black, but still look fairly new. Should I try a new oxygen sensor? After I start the car in the morning it seems like it's got an excessive amount of idle fluctuation for a while. I've heard this is normal, but I'm not sure to what extent. Can running too rich ever foul the plugs? Thanks for your help guys! payne #2975