Hi, I'm new to the forums! First post. I have a 97 XK8 and I was hoping to find some help here! Any input is appreciated.

I have a code 174 and code 151 showing up. Ive been told i need to replace the o2 sensor on bank 2, sensor 1. Is this correct? Im not sure how to locate it and repair it, specifically.

Thanks!

 

P0151
HO2S sense circuit low voltage-B bank, upstream (1)

Possible causes:
HO2S disconnected
HO2S to ECM wiring open circuit
HO2S short circuit to ground
HO2S failure

P0171
A bank combustion too lean

Two different banks at play here.

 

Thanks For Your Help