Chris;

I'm quite certain your connection to the EM2, connector P-2, pin 8 is
correct. My guess is the EC2 pin28 connection is for some other application
without the EM2.  In my manual that pin 28 is for "Future connection to fuel
flow instrument".

Al G

Another question that may be more suited for Tracy (but I hate bothering
him ever and I still hope to make progress while he is away), however, I
was re-reading both the manuals for the EC2 and EM2 and looking at the
pin out sections for the d-sub connections.  I noticed that for the EC2
it shows pin 28 being for the O2 sensor, however, in the EM2 Manual it
shows pin P2-8 as also being for the O2 sensor.

Currently mine is only hooked up the the EM2 P2-8 pin. I do not ever
recall that there should be two O2 sensors installed and I was under the
impression that you would not have two leads off of one sensor to two
different instruments.  So, what line of text did I miss (not unheard of
and one of the reasons I keep re-reading the manuals....as I experience
more, some of the stuff makes more sense with an additional reading even
though I doubt I will ever "get" the calibration stuff...sigh) about
where the 02 sensor should be connected to. Is it preferred to go the
the EM of the EC....or do you have a two wires from 02 sensor, one to
the EM and one to the EU....or something else all together?

Thanks.

All the best,

Chris Barber
Houston

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