I know you wrote the 02 sensor write up awhile back, but MAN, THANK you so much!!! I am not a mechanic nor am I good with tools, but because of your excellent write up and fantastic pictures I decided to go for it.
It took me 2 days to do it (the engine cover had a stripped hex bolt (the last one!

), a neighbor helped me cut it off).
Once that was done...I fixed the easy one first in about 10 minutes...the hard to get one took several hours...(again, I'm not handy) but I finally did it and saved myself a lot of cash which I don't have right now as I'm back in school....
Just wanted to express my appreciation!!