how do I Replace the 02 censor on a 3100

[AWeb80]

well, i know how to do it..but what is the best way...underneath or from the top down the side of the firewall

 

 

I'm not getting codes (Like obd 1.5 does anything anyways), but I do have almose 121k miles on the motor and figured, what the heck.

 

my bro works at orly's, so i'm just getting random replacement parts at a nice discount.

[5speedz34]

You mean sensor?

 

What kind of car?

 

I would go from the top, so you can see the damn thing.

 

You might not even have to tilt the engine forward.

[slick]

Should be pretty easy, especially compared to a 3.4. As Tony said, you should be able to get at it from the top. A normal O2 socket will do.