flat STFT at low load/Idle

[Dreyo27]

To make a long story short car has MMP 1Ks PR Coils index 12 Injectors new pre cat O2s DP fix removed, running vtt shotgun kit on ACN91

At low load/idle my AFR are about 1 off brom bank to bank (13.7:1 vs 14.7:1) It flops lean to rich and the issue shifts banks untill the STFT get stuck at a constant 0 and then that banks AFR hit 17-19.

Reseting the adaprations via INPA/ProTools fixes it, but within a few minutes The AFRS go out of sync and in 30 min of driving the flatlining trims come back.

Here are a few datalogs.

https://datazap.me/u/dreyo27/log-1550717523?log=2&data=16-17-23-25-26

I tried multiple tunes, I also replaced the plugs. cyl 1 spark plug was lean (white), Cyl 5 was rich (black) The other once were normal for a 5k old plugs. (NKGs at .022 Gap)


Any help/insight is appreciated. thinking about replacing some or most of my index 12 injectors, and then checking for a possiable exaust leak.

The code that it gives me is 2CF7 Lambada Control.

 

[Dreyo27]

Also it only happens when its on "Fuel Mode 2" at WOT AFRS are perfect.

 

[E92-Ghandi]

I've been going through the same scenario for some time now, couldn't find a solution.

 

[Traf]

You have trim variance between the two banks, last time that happened to me, turned out to be leaking injectors.
Could also be your O² sensors.