k guys, need your help on this one, i was switching out my plug wires today and noticed in the far right, 4th cyl, there was oil all on the plug, i THINK this is normal ? just making sure, another thing is, i have an intake and a muffler and now wires that's it,for future use i hooked up an a/f gauge and it goes all the way to rich when i get on it, i think it's because the filter i have on there RIGHT now is lol one i ran over, it still breathes but prob not enough so it's not gettin enough air, and running it rich, or maybe i need an o2 sensor ? my cel is also on . . what do i do ? someone HELP!!!

well about the oil in the spark plug wells.. it's common.. but NOT NORMAL it isn't supposed to be in there.. but the 4 little ring gaskets that keep the oil out tend to leak often. They are cheap to replace but it's also not a big problem if there is oil in there, as long as there isn't ALOT of oil in there.

The only thing I can say about running rich.. is that eclipse's run rich stock from what I've been told, but that filter probably isn't helping much.

And get the check engine light checked out, find out which code it is, perhaps it's telling you that your front O2 sensor isn't working, if that was the case then that would be a reason for the car running so rich.