Any special tricks to getting the O2 sensor out of a cat?
I am putting a testpipe on and teh sensor will not budge. i have used all the force i can and it hasn't budged.

 

u still have the cat on the car or off it? those things are biznatches

 

PB Blaster + O2 sensor socket

 

lots of twisting with handwrench

I hate how the friggin wire builds up resistance as you loosen that bolt

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .RJ &raquo;</TD></TR><TR><TD CLASS="quote">PB Blaster + O2 sensor socket</TD></TR></TABLE>

is pb blaster a type of wd-40 substance?
and wha is an o2 sensor socket? guess iw ll have to go to the auto parts store quick.
the cat is off. i have it sitting up right not so the wires don't get ruined.

 

oh nm then

If you have the cat off you don't have to worry about the damn wire. I couldn't figure out how to disconnect the Cat sensor from the car when i did my header install 2 months ago. But mine came off (out of the cat) fairly easily.

Suprising to me as my ITR is a 97'

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .RJ &raquo;</TD></TR><TR><TD CLASS="quote">PB Blaster + O2 sensor socket</TD></TR></TABLE>

O2 sensor sockets suck. Get a 22mm Open ended wrench. Good leverage. ALso HEAT helps.

 

i'll be replacing the rEEr 02 sensor this weekend

yshi - who hopes a monkEE wrench will work

 

ok so i stopped to eat dinner.(mmmm sweet fried chicken)
and realized i can just unclip the o2 sensor.

in this pic i am trying to loosen the nut shaped thing right?

 

its a bitch ,man the 02 socket is like a 22mm or so that has a cut in it to slip over the o2 and wont jumble uop thw wires, hard to expplain but we got one .

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itr206 &raquo;</TD></TR><TR><TD CLASS="quote">its a bitch ,man the 02 socket is like a 22mm or so that has a cut in it to slip over the o2 and wont jumble uop thw wires, hard to expplain but we got one .</TD></TR></TABLE>

The splt allows too much flex. 22mm wrench has more leverage and doesn't slip/strip as easily.

 

1) Wd40 the bitch out of it
2) Let it sit for 10 mins
3) Get out the 22 and pop it loose. It might help if you can have a friend use his foot to stop the cat from moving while you wrench at it.

 

maybe use a pipe or something to put on the end of the wrench/ratchet/whatever for leverage...

 

 

use a propane torch on the surounding bung and pipe/manifold. The key i sheat, penetrating oil and brute strenght.

just avoid the hernia!

 

thans for the help. i just ran to sears and picked up a 22mm wrench. and it came right off.
damn i wasted like and hour messing with the thing when i should have been done long ago.

 

7/8" worked for me.

 

righty tighty lefty loosey. might help if you dont use a channel locks to try and get it out, (which from the chunks in the O2, you did)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Asahi &raquo;</TD></TR><TR><TD CLASS="quote">

O2 sensor sockets suck. Get a 22mm Open ended wrench. Good leverage. ALso HEAT helps.</TD></TR></TABLE>

22mm open wrench is all u need.

 

Yeah...what used to look like a nut is what you're trying to take off...
WHat are were you using? Monkey wrench? Pliers?

Lefty loosey, righty tighty.
Liquid Wrench (substitute WD40), let it soak and bust out the GI Joe Kung Fu Grip.
22mm deep socket will certainly help.
If soaking the part with liquid wrench, it's time to bust out the propane torch.

On your next install, a little bit of anti-seize on the threads will help for the next time you need to remove it...

--
George