I am having a similar issue. TT 60mm 2012 coyote, lu47#, billet opg and crank gears (done and started , ran great). Then tt kit installed. Was having a bad hunting idle, anywhere from 1000rpm -400rpm swing. Scaled maf by measuring stock intake vs aftermarket. Issue is I have a very unstable afr/lambda. Lamda swings from 0.65 - 1.5 according to factory wideband and aftermarket wb on closed loop. On cold starts car idle at 11.5 afr and gradually leans out, by the time it switches to closed loop afr is all over the place roughly 1 minute later. I have applied stft - ltft corrections to maf vs period with it still pulling fuel around idle range anywhere from -2 - -30 depending on how bad the idle dips. Flange temp, o2 sensor, decel fuel cut off disabled (enable rpm set 7000). WOT lambda table set at 1.00. Cylair anti diasabled. Cot over temp disabled ( think I have covered all necessary sensors to be disabled). No matter how many time I apply the stft - ltft corrections to the maf vs period I still have erratic lambda/afr readings. Any suggestions?