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Spark plug helpeagleknight97 05-17-2009, 03:56 PM Whats it mean when my spark plug looks like this? http://i245.photobucket.com/albums/gg54/mhwagner97/DSC01949.jpg http://i245.photobucket.com/albums/gg54/mhwagner97/DSC01956.jpg eagleknight97 05-18-2009, 04:20 PM Anybody?:( silentsprintero 05-19-2009, 12:43 AM Looks a little rich. What plugs are they and what are they/were they gapped at? I never buy platinum plugs, they aren't ever "pre-gapped" correct. TR-55's (standard) gapped at .050" works good for me. How's your air filter and how long since O2 sensor replacement? Do you have any mods that would cause you to run rich i.e. headers, !cat? Injuneer 05-19-2009, 12:59 AM They look like the Iridium plugs. Try this reference: http://www.dansmc.com/spark_plugs/spark_plugs_catalog.html eagleknight97 05-19-2009, 07:07 AM Sorry, theyre just regular NGK Tr55's. Put in a little less than 2yrs ago. I have headers and !cats. Im not super worried about it, and if its running a little rich,thats fine with me. I was just worried that it might be lean or something. Thank you! shoebox 05-19-2009, 08:10 AM Looks a little rich. What plugs are they and what are they/were they gapped at? I never buy platinum plugs, they aren't ever "pre-gapped" correct. TR-55's (standard) gapped at .050" works good for me. How's your air filter and how long since O2 sensor replacement? Do you have any mods that would cause you to run rich i.e. headers, !cat? You don't ever rely on pre-gapped plugs. You always check and re-gap before installing. | ||