RE: Tech Question: 16V passat engine again.

[drew <drew@dyermaker.cs.uoguelph.ca>]

Your cis K-lambda equipped JH will run without an o2 sensor fine, as in
absence of a signal from the o2 sensor the control module will not
modulate the frequency valve (in fact it will run better with no o2 sensor
than it will with a lazy o2 sensor,) resulting in a CIS motor... :)

The Motronic system from the passat and the CIS-E system from the Scirocco
are both a little more complicated and absence of an o2 signal would
likely result in poor running conditions/bad fuel mileage etc.

BTW, if your o2 sensor is rusted into the manifold, you now have a perfect
excuse to ditch the factory boat-anchor and get your self a dual outlet
and TT downpipe (with o2 sensor boss.)  And the best part of it is, you
can claim it's in the best interest of the environment! :)

Drew

On Mon, 25 Jun 2001, Patrick Bureau wrote:

> 
> I dunno I have been running for  7 years without a o2 sensor connected
> on mine (fused to exaust manifold and never bothered to replace it)
> and it clears texas (read california state) emissions just fine and
> runs fine... and I have a cat.
>     ___ __________
>    / _ /_  __/ __/  A Texas Scirocco, 1985 8v Titian Red
>   / __ |/ / _\ \    http://longcoeur.com/scirocco/
>  /_/ |_/_/ /___/    (AIM) patricdlc, (ICQ) 3291816
> 
> 
> -----Original Message-----
> From: owner-scirocco-l@scirocco.org
> [mailto:owner-scirocco-l@scirocco.org]On Behalf Of Wm. Josiah Erikson
> Sent: Monday, June 25, 2001 4:31 PM
> To: Scirocco List
> Subject: Re: Tech Question: 16V passat engine again.
> 
> 
> I have, at times, removed the OXS sensor. Sometimes it significantly
> reduces your gas mileage, but it will run, and generally run fine.
> Don't
> do this if you have a cat, as it will plug it up. Also, it will
> probably
> increase your emissions, so I wouldn't recommend it for a road car.
> Some people report having passed emissions with flying colors with no
> cat
> and no O2 sensor. Well hey - then why not? I'm about to try : )
> 	-Josiah
> 
> 
> 
> On Mon, 25 Jun 2001, Langford, Cory wrote:
> 
> >
> >  One more questions to send out there.
> >
> >  Can the Ox sensor be "faked".  IE: can I remove the Ox sensor?
> >
> >  Also, will the 4-2 down pipe from an early MK1 fit on a 16V head?
> >
> > Just thinking of what options I have for exhaust. I have an old
> manifold,
> > and this would save me buying a header for the 16V if I go that
> route
> >
> > Thanks again
> >
> > Cory
> >
> > --
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> >
> 
> --
> '87 5KCSTQW
> '84 GTi
> http://insanetechnology.com
> 
> 
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> 
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Drew MacPherson, Network Analyst, University of Guelph

drew@dyermaker.cs.uoguelph.ca           |  visit the Massey-Harris page:
http://dyermaker.cs.uoguelph.ca/~drew   |  http://m-h.cs.uoguelph.ca


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