0 volts o2 sensor during secondary air injection

[Luked89]

I'm having issues getting the sap monitor going.

Today I used easydiag 2.0+ and made a graph.

https://drive.google.com/file/d/0B2h...w?usp=drivesdk

The app doesn't seem to start recording until the engine starts but I'll let you know now, prior to starting the o2 sensors were both solid 0.43

Here is a video I made of the values so you can see the sap activation and other values.

https://youtu.be/9_PKN3IfAVQ

So basically b1s1 is 0v while the sap is active.

Here's a repair made recently that may be worth mentioning.

I was having lean codes and repaired a bunch of hoses. Bank 2 lean remained. I then switched my precat o2 sensors and it followed. So b2 was initially bad, so it followed to b1. So obviously I just replace the bad sensor. I'm going to switch them for tomorrow's cold start and see what the results are.

Any thoughts at this point?

[Luked89]

Ok so I switched the sensors and it followed. So I was certain it was a bad sensor. Today I replaced it and the new sensor is doing the same thing but maybe not quite as bad.

Here's a video of the results https://youtu.be/yLf1aQiPpUs

I'm a little thrown off by this. These are bosch sensors. Why is this happening with two new sensors yet the old yellow one is strong as an ox.