Disconnected O2 Sensor

["Rich Wagner" <drsavage@domain.elided>]

Zamani:

The ECU can tell when the O2 sensor has been disconnected by detecting the
voltage floating on that pin.  Under that condition, it goes into open-loop
mode, setting the mixture strictly according to the map--which means just
on the rich side of peak--and not correcting it.  You shouldn't notice any
real change in power, and likely little change in fuel mileage.  Emissions,
of course, will suffer a bit.


Rich Wagner
Montrose, CO
'82 GTV6 Balocco

------------------------------