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P0161

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P0161 OBD-II Trouble Code: HO2S Heater Circuit Malfunction (Bank 2 Sensor 2)
P0161 trouble code definition The P0161 trouble code identifies that there is a problem with the heater control circuit in the bank 2 sensor 2 oxygen sensor. What the P0161 code...

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Question
Getting codes P0161 and P0325
Hello. Both codes indicate a circuit failure, and I suspect that the connectors were not properly reconnected after changing the valve cover gasket. These codes are not likely actual part failures. It is a very tight squeeze to get in...
Question
Starting problem
At 180.000 miles, it could be just about anything. The P0161 and P0140 codes are oxygen sensor codes, and probably don't have anything to do with the starting issue, though you should have that investigated. The P0300 code however is...

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