TCI Torque Converter Misfire - no one in Germany knows why

[f.creek-ranch]

Hey guys, real sticky, after Ive installed a Breakaway TC(2500stall) the 06 GT has bad misfire.
STFT and O2 on both banks goes up and down. This happens all the time in P and D. After a time i hold the pedal in position, the engine runs till the next gear.
I think the cranksensor may be the problem in case of a different rotation mass. The TCI is smaller in dia.
Further I got a under drive pulley - maybe too much difference?

What about the Engine Inertia Torque? Whats the possible Value or the stock?
Anyone experience in this?

[f.creek-ranch]

Problem was mixed up the o2 connectors....