Oops! Shell game, no peeking...

[Shannen Durphey]

z24man at bellsouth.net wrote:
> 
> > From: Shannen Durphey <shannen at grolen.com>
> 
> > How about a 45 mv signal.
> > Shannen
> 
> Correct me if I'm wrong (hasn't happened today?), but don't most ECMs supply a 450mV bias voltage to the O2 >sensor?  Seems like you could poke around on each pin for the 450mV.  I assume some other pins might would > have similar bias voltages, but that might help narrow it down.


Actually, I went one step farther and measured voltage at O2 sensor pins from 2
known ecms, with sensor disconnected, then compared readings with pin to pin
checking on this unit.  The tests were inconclusive.
Shannen


> 
> --Barry
> 
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