Busdepot.com sells one for a fraction of dealer cost...you need to
splice it in, though.  Otherwise it's identical to the stock one.

you need a small pipe wrench, some of that penetrating oil that helps
with frozen fasteners/bolts, a propne torch (hopefully optional),
patience, more patience so you don't strip the old one getting it off,
and so you don't damage the Catalytic converter it screws into.

before you go to bed one night, soak the 02 sensor thread area with
penetrating oil,  in the morning before you go to work soak it
again....and again when you come home....then after dinner, give her a
try.  Patience is the key....take your time getting a good grip at a
good angle with the pipe wrench properly adjusted. Do not pull on the
wrench with a lot of torque until you do.  Once you do, put heavy
pressure on the wrench...and then giver her a yank...hopefully it will
break loose.  If not, only give it one or two more tries before
resorting to the propane torch.

if you use the torch...do not heat the 02 sensor....heat the metal of
the catalytic converter aroound the 02 sensor since that is the area you
want to expand.  Do not get it so hot that the converter will bend or
crimp or tear when you try to crack loose the 02 sensor.  It should come
out now as long as you take your time and make sure you have a good grip
with the pipe wrench.

If you think this seems like over kill...talk to those who have ruined
their catalytic converters...or who have snapped off the 02 sensor ...
or who end up having to remove the catalytic converter in order to
remove the 02 sensor.  no fun.

steve

ghamburg wrote:

> Who sells O2 sensors ? best Price ? can I do it myself?  if so how?
>
> Greg
> -----Original Message-----
> From: Modl6971 <Modl6971@aol.com>
> To: ghamburg@vom.com <ghamburg@vom.com>; Vanagon@VANAGON.COM
> <Vanagon@VANAGON.COM>
> Date: Thursday, May 07, 1998 9:41 PM
> Subject: Re: Low MPG & Carbon Monoxide Smell
>
> >In a message dated 98-05-07 23:35:38 EDT, ghamburg@VOM.COM writes:
> >
> ><<
> > My 84 westy is getting poor gas mileage and seems to be giving off
> more
> > exhaust then usual, any suggestions ?
> > PS: it seems to be running ok W/ new air cleaner, catalytic
> converter, oil
> > change, cap & rotor what else can I check fix or replace?
> >  >>
> > Have your O2 sensor changed and the fuel injection properly dialed
> in.
> >Michael.
> >