O2 sensor-removal tips??

use antisieze preventative care.
I just hurt myself and messed up a wrench to get my first o2 sensor out.

Heat if you have a tourch use that if not take it for a rip and and do it as soon as its cool enouf you wont scaled yourself.

I finally got mine out after marinating it in penetrating oil each night for a week, but it is on the work bench not in the car.

Here's a tip: Don't be a wuss.

Seriously, I think I found a wrench that was the correct size to fit over it, and trimmed my wire plug a little so it'd also fit over that. After that, no worries, got a good grip and just gave it all I had. Worked like a charm.

Try wheeties. If that doesn't work, try spinach.

If the engine still runs, let it heat up to operating temperature and wear mechanics gloves. Makes a big difference.

I use a 4ft cheater bar.

take a hammer and smack the base of the sensor (the hex part) a couple times. it will often come out by hand after this treatment. the sensors rust in place; rust is strong, but brittle, so the vibration from the hammer breaks it loose when brute strength and a wrench cant.

Okaaaaay...lots of tips...1st of all, us steely eyed killer/Air Cav types are not wussies...far from it! But,after exerting enough hand torque to almost break the Jaws on a set of vice grips, and then screaming in agony as my hands careened into the firewall...I felt like crying like a little girl! DAMN that hurt!!I guess I will utilize a combo of all these methods...shame to let it get crushed!