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Any feedback after posting the logs? I am thinking I have a lazy O2 sensor....

Here is the log file & tune!

Here is the log file!

Yes I did - no apparent leaks!

No exhaust leak that I can see. The STFT's log the same as the LTFT's - if the drivers side is +2% the passenger side is +12%.

Set them all to .450 and took it for a spin. The LTFT's were lower than before but still almost a 10% difference between banks.

The O2 switch point is the same for bank 1 & bank 2.
It is currently set like below:

CL Mode Bank 1 Bank 2

0 450.012377 450.012377
8 450.012377 450.012377
16 ...

I actually have American Racing Headers but don't think there is easy access to the O2 on passenger side near starter!

I can but that is a bit of work. Not sure I can swap front O2's without dropping headers. Should I do that or start by looking at plugs or swapping injectors? Somehow I need to figure this out!

Just finished a head/cam/intake project on my LS-6 2003 Z06. Start and runs really well at this point. No apparent leaks or anything mechanically suspicious. In logging I see that the passenger side...

Just finished a head/cam/intake project on my 2003 Z06. Start and runs really well at this point. No apparent leaks or anything mechanically suspicious. In logging I see that the passenger side is...