Hope someone can answer this.

When you datalog 02 voltage to see if your running rich or lean. Should you be reading from BANK 1 SENSOR 1 and BANK 2 SENSOR 2 ?

When I datalog from these two sensors BANK 2 voltage is much higher than BANK 1

 

what are you using to log the data?

 

elm scan box hooked up to my laptop, i've also used my DSM pocketlogger

 

i couldn't tell you about which on to read, but one could be off a little. They trend together so my guess is they should be reading the same. Try over at my350Z, there are a bunch of guys who work with this stuff. where did you get it from?

 

thats what i thought. OK Thanks!

 

Several people have had similar observations. Here's an older thread that discusses it a bit, though I don't know if a resolution was ever reached.

https://g35driver.com/forums/engine-drivetrain-forced-induction/82196-uprev-cipher-anybody-try-theirs-yet.html

 

Thanks Trey. I'll check it out.

Whats interesting is that the Sensors after the cats (heated 02) are reading in synch. They follow each other pretty close