So after i got my Berk HFC installed, i drove it to the beach and about 300 miles later, i got a CEL (code: P2A00). This is for bank 1 sensor 1. This is a pre cat sensor. So i decided to hook it up to a live data scanner, and for my bank 1 sensor 1 it read around .25v at idle and my bank 2 sensor 1 read around .58v and both of my sensor 2 for both banks read around .80 depending driving conditions. What is wrong here? So as far as I can see, my bank 1 runs lean which is why i think it is throwing the code.