Symptoms of bad O2 sensors? What do you think is wrong?

[Methodical]

If you go to swap them, be prepared that they will be seized in there. Something along the lines of a 22mm box-end wrench fits them (I dont like O2 sensor sockets).

You can check each one for switching and amplitude. After the engine has run for two mins, look for the signal to read 0.1 - 0.9 volts, and switch atleast once a second (the voltage will toggle back and forth, from lean to rich).

Good luck.

Or a 7/8" wrench. Put antiseize on the new ones

 

[91LX_5L]

great gonna take that out as soon as i get a smog elim kit.

 

[xkuntrycowboyx]

egr (if you're takin it out) might cause you some idle issues if you remove it. when its cold at least.

 

[bill302]

you guys didnt get any idling issues or worse mileage when you took out your smog stuff did you? any reasons i shouldnt take it out?

nothing negative happened to me...

 

[HISSIN50]

egr (if you're takin it out) might cause you some idle issues if you remove it. when its cold at least.

I think you're thinking of something else.
EGR is never used at idle, and it's never used on a cold motor.