P1168 BMW Closed Loop Control Function Bank 2
Possible causes
– Faulty Air Fuel Ratio Sensor 1 Bank 2
– Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted
– Air Fuel Ratio Sensor 1 Bank 2 circuit poor electrical connection
– Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted
– Air Fuel Ratio Sensor 1 Bank 2 circuit poor electrical connection
Tech description
What about the obd code?
The closed loop control function for bank 1 does not operate even when vehicle is driving in the specified condition, the closed loop control function for bank 2 does not operate even when vehicle is driving in the specified condition.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1168 BMW Description
The Engine Control Module (ECM) performs ON/OFF duty control of the Air Fuel Ratio (A/F)/Heated Oxygen Sensor 1 heater corresponding to the engine operating condition to keep the temperature of Air Fuel Ratio (A/F)/Heated Oxygen Sensor 1 element at the specified range.
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