I had this code popped up after an obd2 diagnosis. According to the results, these were the possible causes:
- Faulty Air/Fuel Sensor Bank 1
- Air/Fuel Sensor Bank 1 harness is open or shorted
- Air/Fuel Sensor Bank 1 circuit poor electrical connection


I need help locating this air/fuel sensor bank 1. I can't find any diagrams online . I would like to physically inspect the faulty area by mysel . If anyone is knowledgeable as to where this is located, pleasefeel free to inform me. Thanks a million

 

It's on the rear exhaust manifold near the firewall.