Anybody know if the factory O2 sensors are narrowband or wideband? If they are widebands, it shouldn't be too hard to get them to drive an AFR gauge on the dash.

Jeff

 

They are wideband. I am using the Brockway engineering unit and it works great with the factory sensors.

 

My laptop may be the cause, but Durametric barely snags 2 samples per sec on my '02. How fast would you say your Brockway updates?

Jeff

 

I would say the same speed, maybe a little faster but not much. If you want the best out I would get the AEM gauge.

 

I have the brockway and the AEM ,the AEM is faster to measure and it seems to me the AEM measures a little bit leaner than the Brockway..

 

The Brockway is just reporting what the ECU puts on the OBDII connector. The lambda measurement happens inside the ECU. It would be interesting to run some calibrated gas passed the factory setup and the AEM to see which one is closer to truth.

Here's one such test:

http://www.fordmuscle.com/archives/2...tout/index.php

I guess you have to subscribe to see page 2. Here's a low res pdf of the whole thing:

tunertools.com/articles/FordMuscle.pdf

Jeff