Are these o2 sensors bad? (log file)

[Z06d]

I've attached two log files. In each log, a different o2 sensor was installed in the B2S1 location. Log 1 was with a Denso sensor, and Log 2 was with an original REAR sensor up front.

Both are from a cold start and last about 3.5-4 min. Is that long enough?

The graphs vary significantly between the banks. B1S1 appears to be switching more rapidly with steeper slopes on both logs. On Log 1, B2 has higher and lower peaks, but switches more slowly. On Log 2, B2's signal remains more towards the mid range, but appears to switch more quickly than the DENSO in log 1.

From these logs, can the health of the o2's be determined? What exactly should I be looking for? I'm fairly new to reading this info, so your replies are greatly appreciated!

Thank you!

[Nodnarb]

Try logging less PIDs. It slows your sampling rate down.

[Z06d]

I just added the cfg file to my original post...

Chart 4 lists the two sensors...

Try logging less PIDs. It slows your sampling rate down.

I didn't realize that. Thanks for the tip!

So, is this data log usable? If not, let me know and I'll log it again. I'd really like some opinions so I know whether or not I should buy a new o2 sensor....