Faking an O2 sensor

[nacelp]

When I build O2 gizmos, I use the voltage drop across a LED as the Perfect
source.  Course for .6 a regular ol diode would work.
Grumpy


> > Yep, the second set of O2 sensors on my '96 Impala SS sit right around
that
> > number if I remember correctly.  The ECU looks for a steady voltage to
> > verify cat operation.  If the signal from the second set of O2 sensors
> > starts to follow the pre-cat 02 sensor signal, that means that the cat's
not
> > working, and throws a code.
>
> So basically if I build a gizmo that gives the sensor wire 600mv and has
> a resistor that "looks" like the heater, it'll work? Shouldn't be too
> tough.
> --
> Steve
> 97 Chevy Camaro Z28, Mystic teal, A4, not stock
> 90 Kawasaki EX500A4, black, M6, not even CLOSE to stock!
> lt1_z28 at ev1.net  http://users.ev1.net/~lt1_z28
> Aluminum, steel, carbon fiber, titanium, and two cast iron balls.
> McMillan Motorsports- http://www.mmsbikes.com
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