[Dominik]

good morning,

in the late 80s Rochester developed a sensor for leaded fuel, which was used in the south-american market.
it had a lifespan of appr. 55.000 miles in a 1.6l OPEL.

so if you are using leaded fuel it may pay totalk to someone at Rochester (now DELPHI Engine Mnagement Systems?) to find out where this sensor is available.

the current sensors (for unleaded) are heated to make the sytem work in closed loop even earlier.
I wonder if the heated sensor would deliver accurate readings sitting farther back?

Dom