Possible causes

– Air Fuel Ratio Sensor 1 Bank 2 circuit is open or shorted
– Air Fuel Ratio Sensor 1 Bank 2 circuit electrical connection
– Faulty Air Fuel Ratio Sensor 1 Bank 2

When is the code detected?

The closed loop control function for bank 1 does not operate even when vehicle is driving in the specified condition.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P1168 Description

The Powertrain Control Module (PCM) or Electronic Control Module(ECM) monitor the function of the Front Oxygen (O2) sensor or Air/Fuel (A/F) sensor by comparing the signal with the Rear O2 sensor.

P1168 Information for specific makes

P1168 FORD
P1168 HONDA
P1168 HYUNDAI
P1168 INFINITI
P1168 NISSAN