Spark plug condition decoding.
 

I took 7 of my spark plugs out and they were covered in soot and then the tips were pretty oxidized. I was wondring if i should adjust anything on the car? suchas air fuel ratio or anything and how do i do that? Ill get some pics up soon.

Re: Spark plug condition decoding.
 

Here's a few sites that may be of help to you
http://www.championsparkplugs.com/sparkplug411.asp

http://www.gnttype.org/techarea/engine/plugs.html

Not sure if you need this one but if not, no problem.
http://www.edelbrock.com/automotive/sparkplugs.html

Don't think you will have to change your fuel ratios and good thing too cause you couldn't do it anyway. Takes a programmer to change the enrichment tables in the PCM. More than likely you have something wrong. Wrong heat range plugs. Clogged cat, dirty air filter, leaking fuel pressure regulator or defective opti. Dirty or defective MAF. Since all the plugs are showing the problem, I doubt you have all 8 bad injectors. I also doubt both O2s went bad at the same time. Check to see if your fuel pressure drops off real quick when the engine is shut down. Check to be sure the engine temperature sensor is reading correctly. If not, it could be tricking the PCM into thinking the engine is colder than it actually is and the PCM is enriching the fuel mixture.