During Spring break I would like to change my rear O2 sensor (code popped up), anyways I want to save some $$$$ and use a universal O2 sensor, so that means I have to cut the wires off the old one and some how connect them to the new one. Can anyone tell me how to do this? Any links to write-ups?

 

I did it with the Bosch sensor. It's really quite easy and the instructions that come with it gave me all the info I needed. (And I don't like electrical stuff!)

 

I guess I'm asking:
What exactly do I do to replace the O2 with a universal unit?
How many wires are there for the downstream sensor?
How do I connect the wires?
etc...

 

my rear o2 just wont come off. i got the universal too.

btw the rear o2 doesnt really need to be changed does it? what exactly does it do again?

 

The only thing it does is make the check engine light go on when it stops working.

I noticed no difference in anything after I replaced the rear O2 due to a CEL.