Ok, what's the deal? And yes I did search

After posting that thread I went out to the garage to see if I could pull the sensor. To my surprise the sucker was pretty tight and that confined area doesn't make it any easier. I even soak it over night with penetrating spray and nothing. The confined area really makes it hard to use basic hand tools because the radiator fan and AC lines were in the way. If shouldn't be necessary to use a 02 sensor socket in-order to get it out should it? Anyway thanks again and I guess I'll try cleaning the secondary sensor also while I'm at it.