Re: O2 Sensor "rich" or "lean" when old?

[Alex Kowalski (audial@aol.com) (Tonya Jones) <tjones@wppost.depaul.edu>]

A couple of days ago I asked this question, and I think I answered it using
the Probst FI book (duh!):  It has a graph of a new and an "old"  02
sensor's signal at different Lambda values around 1.0.  

When the sensor is old, Probst's graph shows it as signalling Lambda =
1.0  when in fact the mixture is slightly rich, but because the graph only
shows one "old" curve and doesn't really define "old" , it's hard to say
just based on that graph how far they can drift in real life.  

Best Wishes,
Alex


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