[Future1LE]

Hey guys,

I am trying to understand everything I am logging on my car. Can someone tell me why my reading for the O2 B2S1 is reading 0 majority of the time? Sometimes it will pick up some reading but majority of the time it just show 0, even when B1S1 is constantly showing values, anywhere from double digits up to triple digits. Even when I just go around the block for a log, O2 B1S1 would show 899, the O2 B2S1 wouod only show 65.Also when I go WOT, it also goes to 0.. car is running lean with AFR ranging from 12.8-13.8.

Also what about STFT, this one is also ready low. I would be cruising and STFT B1 would be -6 or so and STFT B2 would be like 19.5 or higher. Even when they are both positive, STFT B1 would only be like 8.2 and STFT B2 would be 32. What else should I be check for aside from my fuel set up. Did also saw knock on cylinder 8, not sure if these are related.

Also I did just got a CEL for Bank 2 Sensor 1 low voltage (P0151).

I have reached out to the tuner and he told me to look over the port injection setup and injectors make sure they are all good. I will be taking it apart to probably have the injectors tested but can there be other cause of this?

Thank you.