P1168 INFINITI, NISSAN: CLOSED LOOP CONTROL FUNCTION BANK 2
POST UPDATED IN June, 2023
P1168 INFINITI, NISSAN: CLOSED LOOP CONTROL FUNCTION BANK 2
The air/fuel ratio sensors measure how much oxygen is present in the exhaust and send this data to the Engine Control Module (ECM), which uses it to adjust the air-fuel mixture as necessary.
The ECM performs the ON/OFF service control of the A/F (Air/Fuel Ratio Sensor) heater to maintain the temperature of the element sensor within the proper parameters for proper performance.
On Infiniti and Nissan vehicles, the P1168 OBDII fault code is set when the closed-loop function for bank 2 could not be completed. This function cannot be performed even in cases where the vehicle is running under the specified condition.
The P1168 OBD2 diagnostic code is stored for one of the following reasons:
To solve the DTC P1168 OBDII code, try this: