The graphing of a selected pid appears to be trying to process at too fast of sample rate that exceeds the tool's ability to display the information properly in graphing mode on this vehicle in real time.The graph lines are so faint, dancing across the screen in Hyper speed mode and graphing is not useful on this particular vehicle unless it can be slowed down and made legible.
 Tool is at SW V4.02   HW V1.00  LIB  V3.01, so it is at last level of MS609 update pack that I can tell.

file:  20160601_110348.jpg

 I am getting conflicting information about what range of voltage these upstream O2 sensors actually operate in and what is displayed on a generic OBD scan tool.