Date: Sun, 24 Feb 2008 19:52:21 -0800
Reply-To: Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Subject: Re: Bentley wiring diagram. Questions on how to read.
In-Reply-To: <c4e7c5f90802241851j4ec7c670rcda261ea51f09f2f@mail.gmail.com>
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A 3 wire 02 sensor for a 86 and later 2.1 waterboxer vanagon should be fine
if that's more convenient.
If you get it OE style complete with connector plug it's a bit spendy, I
imagine the jetta one is the same except for wire length perhaps, or they
even come 'extra long' so they'll fit many vw applications.
You can get generic splice-in 3 wire oxygen sensors for 40ish or so.
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
neil N
Sent: Sunday, February 24, 2008 6:51 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Bentley wiring diagram. Questions on how to read.
Actually I don't have the O2 sensor...... yet.
Is there a compelling reason to use the stock WBX O2 sensor? Less money?
I know *less* about the Jetta system, and even less about the WBX.
Neil.
On Sun, Feb 24, 2008 at 2:57 PM, Mark Drillock <mdrillock@cox.net> wrote:
> I don't know much about the Jetta system other than what I may read in
> my 93-99 Jetta Bentley. Since he has it I don't see any reason not to
> use the stock HO2S relay in it's stock wiring configuration between the
> ECU and sensor. If he did not have it I would try wiring the O2 heater
> like later 2.1 waterboxer models, from the FP relay.
>
> Mark
>
>
>
> Scott Daniel - Shazam wrote:
> > I have a question for you.
> > On this vehicle we're talking about here, 93 or 94 Jetta with ABA 2.0
> > engine...........on the HO2S ( heated oxygen sensor ) Control Module,
> > there is a wire from that module to the ECU.
> > So evidently, or possibly, the ECU is involved in whether or no 02 heat
is
> > on or not.
> >
> > On a vanagon or a subaru the oxygen sensor/s get their heat circuit
> > energized anytime the key is on, i.e. whenever the ecu is powered up.
In
> > other words 'full time' regardless.
> >
> > So my question is, what to do you think this connection is about ?
> > My guess it that perhaps the ecu tells the H02S Module to heat the 02
> > sensors for the first say 15 minutes of running, and then doesn't have
it
> > get heat power unless the 02 sensor cools down too much at another
period in
> > that drive cycle.
> > Any thoughts on that ?
> >
> > And also..........I 'would imagine' that if I wired one so it got
'regular
> > 02 heat' through a normal relay , that the ECU would set a code perhaps
from
> > not being able to 'see' that control module for 02 heat.
> > Any thoughts on that ?
> > Thanx,
> > Scott
> > Turbovans.
> >
> >
> >
>
--
Neil Nicholson. 1981 Air Cooled Westfalia - "Jaco"
http://web.mac.com/tubaneil
http://tubaneil.googlepages.com/
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