Still can't figure out these issue's..

[Turbo Habanero]

Now im having trouble with code 11 all the sudden today (lose of power to ecu) it came on when i was driving nothing unusaul happened light just popped on and off. But in doing so i thik it erased all my other codes cause i know 34 should have been there atleast as i do hit fuel cut if i shift to fast while on it

 

[Turbo Habanero]

so my car left me stranded today turns out that my negative battery terminal was cracked not getting good connection (reason for code 11?) anyhow on the way home my car through another code 21 (o2 sensor) so this is the first time i got the o2 sensor code even with my o2 was disconnected it wouldnt throw this code so im hoping this might be the cause for smoke.

Maybe its a bit of a rich condition instead of oil

 

[Dan_Gyoba]

O2 sensor code means that it isn't crossing stoich signal voltage when it's expected to be warm. The car only takes feedback from the O2 sensor when it's in closed loop. Open loop is idle and WOT, when it expects to be running rich.