The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. Oxygen sensor 2 is the downstream oxygen sensor in relationship to the catalytic converter.
The sensor voltage should cycle or fluctuate within the 100 mV-900 mV 010 to 090V range.
What does o2 sensor circuit high voltage mean. The O2 sensors sensing ability comes about by producing a small voltage proportionate to the exhaust oxygen content. O2 Sensor Circuit High Voltage Bank 1 Sensor 2 What the P0138 code means P0138 is the OBD-II generic code indicating the O2 sensor for bank 1 sensor 2 fails to have a lower voltage output below 12 volts for more than 10 seconds indicating a lack of oxygen in the exhaust stream. So either you have an engine performance issue.
OBD-II Code P0132 is caused by an oxygen sensor circuit high voltage Bank 1 Sensor 1. It measures the amount of air and fuel coming out of the catalytic converter to ensure the catalytic converter is functioning properly. If the voltage is high approx9V there is an excess of fuel in the mixture.
Specifically that the oxygen sensor has stayed at a high voltage for too long without switching back. In other words if the oxygen content is low it produces a high voltage 090 Volts – Rich mixture and if the oxygen content is high it produces a low voltage 010 Volts – Lean mixture. If the O2 sensor only produces a low or high voltage signal.
It detects the amount of oxygen in the exhaust gas compared to the outside air. Oxygen sensor 2 is the downstream oxygen sensor in relationship to the catalytic converter. It measures the amount of air and fuel coming out of the catalytic converter to ensure the catalytic converter is functioning properly.
If the voltage is high approx9V there is an excess of fuel in the mixture. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The front heated oxygen sensor or O2 sensor 1 is placed into the exhaust manifold.
What causes the P0138 code. Hi Joshit means that your O2 sensor 1 before the cat convertor is showing high voltage0-1 volt it may be at 8 or 9 voltsThis means it is reading richHow is your car running as this could be something else making it richIf it runs fine try a O2 sensorGood luck. Hence This means the sensor is operating properly.
02 Sensor Circuit High Voltage Bank 1 Sensor 1 What the P0132 code means When the P0132 trouble code has been stored by the power control module it is an indication of a problem with the 02 oxygen sensor.