HO2S2 Bank 1 and Bank 2 is reading Lean.

[augi_lucas]

I've Been Chasing my tail for the past 5 months trying to diagnose an issue with my Z.
Car Info: 2004 Nissan 350z, 75k miles, running a SFR Turbo Kit @6psi. DW 650cc Injectors, Pro Efi Standalone 48-705 Ecu. Tuned by Pro EFI in AZ (currently live in WA)
Repairs: All new 02 Sensors (Bosch).
Issue: Car is assumably running rich, cab smells like fuel, economy is downhill, and exhaust smells like fuel, randomly my Z will feel sluggish and release a couple "pops". I've plugged in my scanner and have codes for AFR 02 Sensors and Can Comm Circuit. Now I decided to data log, and seen my H02S2 Bank 1 and Bank 2 Reading Lean. Voltage are B1 0.33(V) B2 0.32(V) and change. My AFR 02 sensor read 1.3(V) while cruising & up to 2.10(V) when I give it the beans. I'm not the smartest diag person but I know enough to keep my cars running and moving. I also have a recording of my live data if someone would like to view and guide me.
Side note I also believe my IPDM is causing some issues and could possibly be related to my 02 sensors, just because it carries the fuse for it. Can Bus Comms pops up on my IPDM and ECU. I could be wrong but regardless i bought another through Ebay and plan on swapping it out. Not specifically to fix my Fuel issue, but my speedo, tach, temp and turn signals will stop working when I press on my accelerator pedal, and work perfectly fine when I let off, I did remove my old one and tore it apart. It did have corrosion & i did my best to clean it off with the plugs as well. It actually helped with my other issues, and I believe my 02 sensor codes went away, but after a while it started acting up again, thus is why I bought one based off the small hope I had.

[VStar650CL]

What are your fuel trims? A/F voltages don't mean much without knowing what adjustments the ECM is making to the injectors. Your A/F's are 1.5V types so 1.3V is slightly rich (about 14:1), not lean. The fact that it's going way lean on acceleration (about 20:1) likely indicates a fuel or exhaust issue, maybe a restricted cat. The rears are HO2S's so the static voltage means very little, they should oscillate from roughly 0.1~0.8V at about half a hertz when you're cruising or holding the RPM's up. The ECM evaluates both the switching time and voltage, low voltage or slow switching time is assumed to mean a bad sensor, too fast a switching time is assumed to mean a bad cat.

[augi_lucas]

I thought the higher the voltage it reads, the richer the car is running? and also, I am not running any cats, just an exhaust system with resonators.
when I was data logging even at idle, my AFR sensor reads around 1.1 (v) but yet it still reading Lean. That's what confuses me.
Currently I'm going to try to remove my 02 spacers and see if that changes anything, perhaps test the 02 plugs back to my ECM and see if I possibly have a short of some kind.

[VStar650CL]

Nope. It's opposite, lower is rich, higher is lean. Unless the sensor drivers are different from stock, the stoichiometry line should be 1.50V.