Strange plug

[tag4car]

So i thought it would be fun to change the plugs on the cobra, No issues changing but the back passenger side plug looked like this

 

[Moon]

Remove and replace flux capacitor. Reason: foreign material inside

 

[tag4car]

new plugs in all 8 and that plug well got a cleaning, seems to idle smoother

 

[BurningRubber]

The part of the plug that matters is fine. Looks like you got some moisture in the well though. Did you wash the engine or anything since you had it?

You may want to check that coil as well and see if the spring inside is corroded.

 

[tag4car]

i cleaned the boot also, I have washed it in the past but this has me thinking about future cleanings..