I'm been testing with my DiCE and ViDA and noticed that one of my rear O2 sensor fluctuates from .15 to .60 volts. The other rear O2 is pretty consistent at .60 volts. What's going on here? Is it an issue with a injector or is it a failing O2 sensor?

 

did you get any PMs on this question? I'm searching for insight on rear O2 and possible influence on fuel delivery.

 

No insight what so ever,!