Oxygen Sensor for 5KTQ

[Kneale Brownson]

Why would the sensor need reference air?  It doesn't decide anything, just
"reports" conditions inside the exhaust system.  I'd think the "reference
air" if needed, would be at the ECU.   It's the ECU that decides things. 

At 09:18 PM 5/10/2005 -0400, Ben Swann wrote:

>
>I suspect some of the newer designs - 4 to 6 wire sensors actually have a 
>dedicated conduit for reference air.