Can't get downstream 02 sensor off

[chantspel]

Hey guys,

Trying to replace the downstream 02 sensor and I can't get the thing off. I've already tried pb blaster and warming the car up by running it a awhile, still no go.

Any suggestions? It isn't a reverse thread or anything like that is it? Just so happens to be that when i put my 02 wrench on it I connect from the bottom so right is left and left is right. Giving me all kinds of headaches

[sportred04]

your gonna have to heat it up red hot with a smoke wrench and the try it again.

[Bio248]

get a bigger wrench.