95 RRC 4.2 asking for help w/ diagnoseing an engine problem

[92 classic]

the pic of ur plug looks like its new usually the plug with some miles on it would have a whitish light brown electrod and the ring on the plug at the bottom of the threads would be black and kind of sutty go to advanced auto parts and look in a chiltons manual does not matter what car and they will have a color page somewhere in their that will show a spark plugs and how they look under diff. conditions

[Ed*]

yeah the plugs were replaced in feb of 07 and have about 30,000 miles on them. But i live in the city so almost all of my miles are long trips, I take the subway mostdays.

thanks for the sparkplug chat advice, i found this one that may help others

http://www.v6z24.com/mods/howto/images/plugs/plugs19.jpg