o2 Sensor help!!

[96talontso]

I'm installing my downpipe and cat-back and the o2 sensor i believe it is that screws into the pipe after the cat is COMPLETELY rusted on and i have cranked and cranked on it and it will not come off without me completely stripping it. I'm not sure what to do so please help!

 

[wdawson4]

Have you tried using a cheater bar on the end of your wrench?
Have you used pb blaster to try and loosing up some of the rust?
Also there is a socket made specifically for removing o2 sensors you can rent them at your local parts store.

 

[LiquidX]

Breaker bar and penetrating oil will work wonders. Torching the bung will also loosen it up too by expanding it out away from the sensor.

 

[Quicksilver1695]

find penetrating oil called AEROKROIL. It literally runs circles around PB. The can has a guarantee that it will loosen the bolt or money back. hahaha. Trust me, It works.

use a line wrench too...