Spark plug question

[xanth]

Ok, so my next question

Replacing the spark plugs, and pulled plug #6 first. It had this "cover" on it. Never seen something like this before, is it normal for a syclone? Any ideas? Pulled plug #2 and it didn't have this cover on it, however #4 doee?

Plugs are pretty sooty, which leads me to beleive it's running rich (right assessment?). it's also throwing a code 44.

Alot of the vaccum lines are OEM, so replacing them all as I'm running through the engine.

 

[13Pelle]

Re: Spark plug question

They are used to help slow/prevent the oil fouling of plugs on worn out cylinders.

 

[xanth]

Re: Spark plug question

They are used to help slow/prevent the oil fouling of plugs on worn out cylinders.

Thanks!

That dosen't sound promising though... I wonder if the PO had that problem... with 57K miles on it, the cylinders shouldn't be that worn out should they?