Alright I was finally able to get the other 02 sensor removed and replaced, but now I have another problem.

my damn break pedal is hard as a rock. I have to use excessive force to stop the car. This is the first time this happened.

Now that I think about it I removed the master clyinder tube that goes next to it. so can someone instruct me on what to do next

Hook the tube/hose you took off back up :). If you took the check valve out, you may have put it in backwards. This will cause very hard braking as well.

Out of purient curiosity, what "method" did you use to get the O2S out?

Thanx Tim thats exactly what I did....I put on backwards. The car works fine now..

Dave I used the same method as the sticky but I did use a u-joint 3/8 socket extension it made the driver side 02 easyier to remove.

Gotcha, sticky SOP.

Sorry I didn't provide help but your thread title made me do it... =D

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"True Rides are built, not bought."
^ Let's hope this quote is acceptable....

1991 Nissan 300ZX Non-Turbo: Mauled, disfigured, and crippled after braving the New England Winters like a hardcore soldier....so I sold it.

Current Plans:
1991 Stanza: Give it a rally setup with a turbo and 3 coats of POR-15 on the exhaust and undercarriage
1978 Datsun 280Z: Arizona Z suspension, and a turbo...oh yeah and paint...