Fw: Wide band O2 ????

[mr.utility at highstream.net (mr.utility@highstream.net)]

Quoting Dan Bubb <jdbubb@ix.netcom.com>:


> 1. control the current to it's heater to maintain the sensor temperature in a
> narrow band despite exhaust heat input (or lack thereof) 

> Dan
> 
> 


Correct me if I am wrong, but the only time the heater is used is at initial 
start-up, when the sensor is cold?  I was under the impression that that was 
the only time the heater is used, to further diminish emissions when the O2 is 
cold and not yet able to function completely....

David