Quote:
Originally Posted by maxc
If all the 02 was consumed before it reached both the upstream and the downstream 02's would not work. After a very large part of the fuel is burnt in the converter then there is no o2 left.
Welcome aboard George. p.s you need a good OBD2 scanner too read grams of air entering engine.
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All they do is produce a varying voltage dependent on oxygen content in the exhaust stream. A narrow band sensor has steep curves while a broad band is more gradual allowing a wide range of measurement of the O2 content of the exhaust ( thus the term wide-band O2 sensor ). They can still be functioning even when the fuel is perfectly burned. They are not "fooled" by "enhanced combustion".