O2 Volts

[G. Scott Ponton]

Exposing the sensor to butane cut off the oxygen to the element. This is
what caused the reading to go high. This is something I started to touch on
in yesterdays post. It has to do with the molecular weight of the gas being
used to flush the exhaust side of the sensor. If the gas used doesn't have
enough "weight" to "push" the oxygen out of the way the reading doesn't
change.

Scott