AFR ratios are not wanting to cooperate, what could be causing this?

[natedog7700]

My Bank 2 AFR seems to diverge from target and i cant seem to find out why. WOT onset no matter what tune, it does this. Here is a log, i had slight traction issues but it shows what im talking about. Im scared to be beating on it with AFR's in the 17s for the first few seconds WOT. http://www.datazap.me/u/natedog7700/...-22&zoom=27-70



Replaced the following:

4-6 injectors with index 12's and coded correctly
Upgraded from stage 1 to stage 2 LPFP
New NGK plugs gapped .018
New Delphi M3 coils

My car FBO with Standard RB's and VTT inlets running E50 ish

[Karleo]

Lmao those bank 2 fuel trims are whacked tf out. Reset adaptions, if still $#@!ed get a new bank 2 precat o2. I wouldnt go wot with the trims running away from eachother so severely.

[natedog7700]

Lmao those bank 2 fuel trims are whacked tf out. Reset adaptions, if still $#@!ed get a new bank 2 precat o2. I wouldnt go wot with the trims running away from eachother so severely.

Is resetting adaptions still necessary if i flash a new map? Or is the only way to actually "reset the adaptions" on MHD. Im 99.9% certain its not tune related.

And my new 02 sensor fixed my idling issue that i was having, so it definitely did work for that i assume its good.

[natedog7700]

Ohh, totally forgot to add that i did in fact change both O2 pre cat sensors! I did not replace the after cat sensors though and i am getting a code for bank 2 after cat. But those dont affect AFR's do they?