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O2 Sensor info

  I have an aftermarket (Tomko?) service bulletin that explains how to bench
test oxygen sensors, along with expected readings, good useful info, etc.  If
anyone is interested I will post the important parts of it.

  When I was out checking prices on one, I got ranges (3 wire, 87 5KCSTQ)
from $99.00 to $120.00.  One place offered me a 'universal O2 sensor' that I
would have to solder on my leads for $45.00.  With 20 years experience as a
nuke electrician, I'm qualified to solder.  Does anyone have any experience
with universal sensors - ie, mV output range same, etc?  Obviously cost is
driving this decision...

 Dave Head
 87 5KCSTQ