Cops have been replaced and the slight miss still shows up. Plugs have about 30K on them with the motor having 120K. I have not replaced the O2 sensors but they are next. No codes showing. Take it out of Drive and rev it a little and the miss goes away. I wouldn't think that a plug has fouled.

While I'm having the O2 sensors replaced I'm thinking of replacing the cats with new ones and installing a cat back exhaust to. They system is starting to spring leaks and now is as good a time as any.