ECMlink Is this is a bad O2 Sensor?

[Clinical]

Been fighting idle surge, have eliminated boost leaks, replaced all TB sensors, deleted FIAV & coolant bypassed. New TB Gasket. Full throttlebody rebuild with new shaft seals. Only thing left is really the intake manifold gasket.

However also in datalogging the car, the o2 sensor readings seem off but I'm wondering if it could just be because of the idle surge? Or could it actually be causing it if it's bad?

 

[Phantom DSM]

Do you have an old version of link? Some areas are not viewable such as DA, Your Afrest is all over the place. As for the o2, unmetered air in the beginning does not show rises in o2 signal. I would check the o2 sensor circuit or sensor itself. Im assuming you blipped the throttle in middle of log and o2 started cycling.

 

[Clinical]

yes there was a bit of throttle and i believe i got onto the launch control. It's Link v2.5.
AFR is pretty unpredictable at idle and mostly is lean due to the surging. It bounces 14.6-15.4 while driving but is fairly consistent.

 

[azules demon]

I am havin similar issues, checked for leaks, and had my tps cycle off the tbody. and when i was loggin, i only saw initial o2 sensor movement when i fired up my 1g. i have everything else worked out to where it should work. the only issue is, i have both stock and 880 pte's. when i swapped from the 880's to the stockers idle got worse. my 1g has been down for sometime, and i am trying to get the ecu working with a stock motor and turbo before i go to the stroker i am still in progress of completing.

i do have a stock o2 on order because i believe it is faulty....24 yrs workin.

i did reset the fuel trims. as necessary before i get that question. ha.

mechanic good, ecu understanding....in process.