Spark plugs keep fouling.. any ideas as to why?

[suprafanatic]

Im currently running Autolite 3923 copper core plugs and NGK wires. i have had to replace the plugs about 3 times in one month. And now they are starting to bad agian. At least i think its the plugs. The car sounds like its sputtering and missing alot and every time i'v changed the plugs those problems went away. Then after a while the problems come back. I know my CPS wiring is bad, my car is idling around 1K some times. Any ideas what would cause the plugs to keep going bad?

 

[jdub]

Try different plugs...Autolite 3923 are 1/8" shorter than spec plugs for the 7M. Give the NGK's a try.

Do you have any ECU Codes?

I know my CPS wiring is bad, my car is idling around 1K some times.

You need to get this fixed

 

[suprafanatic]

i will check for codes, thanks. also everytime i pull the plugs the arm is white, and the base around is black. if that means anything

 

[grimreaper]

A plug can become fouled from continuous low speed driving, improper spark plug heat range (too cold), improper timing (over-retarded), too rich an air/fuel ratio or an oil leak into combustion chamber.

what is fouling them? carbon, oil or fuel?

 

[grimreaper]

i will check for codes, thanks. also everytime i pull the plugs the arm is white, and the base around is black. if that means anything

Thats the ground strap, it will tell you if your heat range is correct and how your timing is. To read a plug (ive learned) you have to avoid idle and cruise if your trying to check them for wot.