6.0PSD

As I wait for my a/f sensor to arrive to hopefully fix my fuel issues can anyone explain how close in readings the 2 a/f sensors should be to each other? Should they be reading exactly the same during normal operation? What should be the highest positive reading be for each gauge related to each bank and also the lowest readings which reads into negative numbers? Any and all info that can help educate me or everyone who is looking for same is much appreciated

Also what is the normal engine rpm on a properly tuned, perfectly running rx300?

I took a short 80 mile round trip today and recorded some readings during the trip showing bank 1 vs bank 2 numbers and they are very far apart most of the time so I just need to educate myself further in case my fuel issue is not resolved with the new bank1 A/F sensor... I believe each gauge has small arrow pointing toward the highest and lowest readings during this trip.
Ready to go

6.0PSD

About 10 minutes into trip here with about 5 miles down

Readings during quick hard push

Startup for the return home gave a No Data on STFT1, first time seeing this for me...

Making my way up to a higher speed

Hit about 70, let off throttle then took this shot.

aznlapin

I hover around 2700 rpm, +/-100 when I keep the RX at 70mph. Idle is around 750rpm. Don't have any other measurements off the top of my head.

6.0PSD

Mine is AWD and I understand FWD run at lower rpms and therefore will also get better fuel eco, is yours FWD? I can live with a mile or two less per gallon but wouldn't give up my awd, I love the control in the snow too much...

Thanks for the idle rpm. I have been looking at mine on phone gauge for a little while and found it running from anywhere from crappy 570ish to 800ish, it's all over the place because of fuel issues I'm having.. 750 would seem high for me as I have had it idle about 650 and it was pretty smooth, readings watched with car in Park and fully warmed up, but as long as I can figure out my other issue...

I just need to learn more about the fuel trims and hope someone with knowledge in that department comes along to better explain them... I should get my new A/F sensor by end of this week then hope to get it installed soon to see what readings I get between both banks.

Just saw your sig and see you're awd... Yours is a 2002 so maybe something changed from 1999, idk... I'm also running 235 65 16 tires so maybe that also makes a bigger difference than I originally expected... I don't ride highway much