P1163 Mercedes-Benz Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 2
Possible causes
– Fualty Front Heated Oxygen Sensor Bank 2
– Faulty Front Heated oxygen sensor 1 heater
– Fuel pressure
– Faulty Fuel Injectors
– Intake air leaks
– Faulty Front Heated oxygen sensor 1 heater
– Fuel pressure
– Faulty Fuel Injectors
– Intake air leaks
Tech description
If there are no intake air leaks, the most Possible Causes of the P1163 Mercedes-Benz code is the front O2 sensor bank 2.
What about the obd code?
The maximum and minimum voltage from the sensor are not reached to the specified voltages.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1163 Mercedes-Benz 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.
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