[kjewer1]

Regarding your first post, you want to get LTFT to zero. STFT will give you an idea of what the ECU is shooting for however. If STFT is very positive for example, you can expect LTFT to also go positive over time as the STFT average is dumped into the LTFT. If they are both near zero, they will probably stay there. STFT can wander around though as the ECU adjusts for temporary fluctuations in the motors operating conditions. But again, the short version is that LTFT is the one to get close to zero.