A/F Gauge Wiring Hookup?

[jdbubb at verizon.net (Dan Bubb)]

I guess I don't understand.
The O2 sensor only has one wire and it doesn't produce a voltage unless it's 
hot.
Perhaps the power required to drive the electronics in the qauge was wired 
so it always had 12V instead of being switched 12V.
As far as the temp and pressure gauges, if the current sender is compatible 
with the gauge i.e. it has the correct resistance curve, then I imagine you 
could splice them.

BTW, a narrow band O2 sensor is really pretty useless when it comes to 
tuning a turbo engine. It only indicates if you're richer or leaner than 
stoichiometric with no indication by how much. Easy way to burn up some 
pistons.
Dan

From: "Brian Spinney" <vw_85roccoZ400@hotmail.com>
Sent: Monday, August 01, 2005 11:14 AM
Subject: A/F Gauge Wiring Hookup?


> Hey Everyone,
>
> I am about to reinstall my A/F gauge into my new Scirocco even thought I
> should just buy a digital volt gauge which reads low voltage.  However my
> founds are low right now, so I was wondering how to wire my A/F gauge with
> the single wire 02 Sensor?
> In my last car it wasn't wired correctly and there would be power to the
> wire with the car off.
>
> Also one last question for those of you running pressure gauges and
> temperature gauges such as oil pressure and coolant temperature do you
> splice the stock line into the new line which runs to the sending unit?
>
> Thanks alot
> -Brian
> '85 Scirocco 8VT
> vw_85roccoZ400@hotmail.com
>
>
>
> _______________________________________________
> Scirocco-l mailing list
> Scirocco-l@scirocco.org
> http://neubayern.net/mailman/listinfo/scirocco-l
>