Posting for a friend, who is milked to the point of bankruptcy by stealer.
car : 2001 I30t, Autotragic, all stock
problem: Transmission does not shift properly. I would say shift very very slowly, sort of limp mode.

Codes : P0171, P0174, P0731, p0732.

Recent work : front & rear O2 sensors (from stealer but non oem sensors)
60K miles service (all sort of non essential crap)

I have a feeling he has some kind of electrical problem,
Can some one give some pointers on common problems which could cause these issues.