P1163 Code: Meaning, Causes, and Symptoms | OBD2 Codes

P1163 – Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2

 

P1163 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

P1163 Possible Causes

 

Faulty Front Heated Oxygen Sensor Bank 2,Faulty Front Heated oxygen sensor 1 heater,Fuel pressure,Faulty Fuel Injectors,Intake air leaks

 

P1163 Description

 

The heated oxygen sensor 1 is placed into the front tube. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the ECM. The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.