lambda wideband vs stft error

[normannova64]

96 Blazer 5.3 swap. Different intake tube, filter element, and exhaust system. When dialing in my VE with AFX NGK wideband error is reading 4% different than the STFT error. Wideband is reporting 2% rich while STFT are reporting 2% lean. Who do I trust? Do I change the transfer function on the wide band to report the same as the STFT? Or should I tune only PE on wide band and part throttle low loads on STFT and call it a day? Lol, every day trying to learn the correct way to do something is a adventure. I've done some searching, but nothing that really stood out as a good answer. Thanks everyone for tolerating me.

[mowton]

Adjust the WB Offset transform to equal STFT error and/or the WB gauge. Log STFT and WB error while driving steady at like 3o-35 mph. adjust using those differences.

Ed M

[normannova64]

Adjust the WB Offset transform to equal STFT error and/or the WB gauge. Log STFT and WB error while driving steady at like 3o-35 mph. adjust using those differences.

Ed M

That's what I'll do. Thanks Ed.

[normannova64]

How close would you try to dial these readings together? 4.19.hpl
I'm comparing STFT to Lambda Error