93 Octane

2011 e92 126k miles Full bolt on Mhd stage 0 for past one year Primary o2 sensor replaced but codes are returning. Could not rev to 6500rpm because of speed limit. So limited my top speed to 60mph.

2011 e92 126k miles Full bolt on Mhd stage 0 for past one year Primary o2 sensor replaced but codes are returning. Could not rev to 6500rpm because of speed limit. So limited my top speed to 60mph.

It seems like it’s missing at idol and doesn’t seem smooth under light acceleration. Can you tell me what may be causing this by looking at the log?

CSF FMI, AEM 340LPH PUMPS, STAGE 1 TURBOS, DPs, INVIDIA FULL DUAL CATBACK. ID12s, NGK gap .022.