Re: Retrofitting a 02 sensor

["Christian Els" <tiAn@usiw.net>]

No problem. CIS gives the same mixture to every cylinder. You might fail to
catch a bad injector that way, but you will notice that in other ways like
hard starting, rough idle, etc.

Christian
1987 16V


----- Original Message -----
From: "Marc Peterson" <mpeters6@rochester.rr.com>
To: <scirocco-l@scirocco.org>
Sent: Friday, 14 December, 2001 11:20
Subject: Re: Retrofitting a 02 sensor


> Ah, forgot about the heated/non heated thing.  Yeah, I'm planning on using
a
> Bosch single wire, so  I'll have to mount it in the manifold.  I wonder,
is
> it going to be a problem mounting it where it only senses 2 of the
> cylinders' exhaust gases?
>
> Marc
> ----- Original Message -----
> From: "Christian Els" <tiAn@usiw.net>
> To: "Marc Peterson" <mpeters6@rochester.rr.com>; <scirocco-l@scirocco.org>
> Sent: Friday, December 14, 2001 12:04 PM
> Subject: Re: Retrofitting a 02 sensor
>
>
> > Mark,
> >
> > You will want to weld a bung onto the downpipe as otherwise the sensor
tip
> > will be against or through the far wall of the pipe. It cost me $10 to
> have
> > the local Muffler King weld one on mine, off the car.
> >
> > You could prolly get away with tapping a hole in the manifold, if you
are
> > using a cast piece and not headers.
> >
> > If you do not install a three wire sensor, you'll want to mount it as
> close
> > to the head as possible to keep the operating temperature up.
> >
> > Cheers,
> >
> > Christian Els
> > 1987 Scirocco 16V
> >
> > ----- Original Message -----
> > From: "Marc Peterson" <mpeters6@rochester.rr.com>
> > To: <scirocco-l@scirocco.org>
> > Sent: Friday, 14 December, 2001 10:35
> > Subject: Retrofitting a 02 sensor
> >
> >
> > > I'm starting to gather parts for my JN block/JH head conversion, and
was
> > > wondering about the O2 sensor.  I'm going to be using my existing CIS
> > > (non-lambda) and currently I have no way monitor a/f ratio.  So, I
want
> to
> > > install a O2 sensor that I can monitor with a meter and/or guage.
What
> I
> > > was wondering is if I could drill and tap a hole in my downpipe.  I
was
> > > thinking about using the area near the bend at the bottom where the
2->1
> > > transition is.  Do you think there is enough metal there for the
sensor
> to
> > > bite on, or do I need to get a nut welded on there?
> > >
> > > Thanks, Marc
> > >
> > >
> > > --
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> > >
> >
> >
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> >
>
>
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