O2 sensor's

[bruce plecan]

Ref Ron:
  Jus to get my 02 in.  If you look at the O2 sensor's
output is swings above, and below this 14.7 and
jus tries to average this magic no.
  As I read things an engine makes it best Brake
Mean Fuel Consumption (best mpg) at max torque
as you go away from this speed higher or lower
this number increases. 
  If ya do a search in the acrhives under 14.7,
and O2 sensor there is several days reading.
  Bruce