Bank 1 Sensor 1 is the upstream. Its on The Header where they all meet. it may not bwe the problem though seeing as i have the same code and just changed my o2 sensor and the code came back. Bank 1 Sensor 1 is the upstream. Its on The Header where they all meet. it may not bwe the problem though seeing as i have the same code and just changed my o2 sensor and the code came back.
Trouble code P0131 means:O2 sensor circuit low voltage (Bank 1 Sensor 1)
Trouble code P0131 means:O2 sensor circuit low voltage (Bank 1 Sensor 1)
Trouble code P0131 means:O2 sensor circuit low voltage (Bank 1 Sensor 1)
P0304 is #4 cylinder misfire. P0131 is O2 Sensor Low Voltage Bank 1 sensor 2
Trouble code P0131 means:O2 sensor circuit low voltage (Bank 1 Sensor 1)
Trouble code P0131 means:O2 sensor circuit low voltage (Bank 1 Sensor 1)
Trouble code P0131 means: O2 Circuit Low Voltage (Bank 1, Sensor 1)
which sensor is for bank 1 sensor 1 on a 2006 nissan xterra
Trouble code P0131 means: O2 Circuit Low Voltage (Bank 1, Sensor 1)
P0131 - upstream heated O2 sensor circuit low voltage ( Bank 1 ) so that's the oxygen sensor in the exhaust on the passenger side of the engine before the exhaust enters the catalytic converter
Not a valid code number, check again. If it's P0131 then it would be a oxygen sensor on bank 1 sensor 1, low voltage.
bank 1 is drivers side down stream o2 / bank 2 is drivers side down stream o2