How to fix P0161 engine code: HO2S Heater Circuit Malfunction (Bank 2 Sensor 2)
The O2 sensors monitors the amount of oxygen in the exhaust which the computer ECM/PCM uses to adjusts the air fuel ratio.
The sensors also have a heater element that monitors the catalytic convert.
Possible Causes of a P0161 Code:
Failed O2 Oxygen Sensor
Wiring Open or Short
Exhaust Leak
By using this information user assumes all risk of use.
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