O2 Sensor Questions

Efraim egav@wireless2000.com
Sat, 21 Apr 2001 17:31:44 -0700


Make sure you crimp wires using butt splice. Soldering can be done too, but
it is not recommended and is difficult because it requires hi-temp soldering
iron.
Efraim
'88 5KCDTQ  328K km (204K mi) , 1.8 Bar
'90 90 105K km (65K mi)
Vancouver, Canada


----- Original Message -----
From: "Ti Kan" <ti@amb.org>
To: "Christopher Ritchie" <critchie1@hotmail.com>
Cc: <quattro@audifans.com>
Sent: April 21, 2001 5:10 PM
Subject: Re: O2 Sensor Questions


> Christopher Ritchie writes:
> > 1. What happens when you run your car with the oxygen sensor
disconnected?
> > If I need to do this for a while, what happens?
>
> Without the sensor the ECU will run 'open loop' which means that you
> may not get the optimum fuel air mixture for emissions, economy and
> power.  Also, depending on the model of car you may get a "check engine"
> light on the dashboard and/or a fault code recorded in the ECU memory.
>
> > 2. My O2 sensor has 3 wires - 1 black, 2 white.  I had to cut them to
get
> > the cat off.  When I go to hook them back up, does it make any
difference
> > what white wire is connected to which white wire?
>
> The white wires are for the heater element.  It doesn't matter which
> way it's connected.
>
> -Ti
> 01 S4 2.7 biturbo quattro
> 84 5000S 2.1 turbo
> 80 4000 2.0
> 96 A4 2.8 quattro (sold but not forgotten)
> --
>     ///  Ti Kan                Vorsprung durch Technik
>    ///   AMB Research Laboratories, Sunnyvale, CA. USA
>   ///    ti@amb.org
>  //////  http://www.ibiblio.org/tkan/
> ///
>
>