Oxygen Sensor Heating Before Catalytic Converter Activation

The vehicle had come from another shop which had already replaced the oxygen sensor.

Oxygen sensor heating before catalytic converter activation.

July 26 2016. Bank 2 or b2 refers to cylinders 5 8. 2c9f oxygen sensor heating after catalytic converter 2 activation 1. The oxygen sensor before catalytic converter is a broadband oxygen sensor control sensor.

Open circuit 284e00 oxygen sensor after catalytic converter nernst voltage signal. Bank1 or b1 refers to cylinders 1 4. The broadband oxygen sensor continuously measures the residual oxygen in the exhaust gas. I have two questions regarding the following fault code.

People have often stated that the oxygen sensor installed behind the catalytic converter in a common gasoline engine setup has only one function. 2c2d oxygen sensor before catalytic converter bank 1. Short circuit to ground 283300 oxygen sensor before catalytic converter heating activation. Followup from the pelican staff.

To test the health of the catalytic converter. A lazy oxygen sensor might falsely indicate a catalytic converter problem yet not set a dtc for itself. The vehicle had repeatedly returned with a code of p0031 o2 sensor b1s1 low current flow heater circuit failure open circuit. The shop that called me also replaced the o 2 sensor.

Sensor 2 or s2 refers to the sensor after the catalytic converter. The fluctuating values of the residual oxygen are sent to the engine control unit as a voltage signal. Other engine problems such as fuel trim running too rich or too lean oil or coolant burning or engine misfire problems could all lead to catalytic converter. There is generally no disagreement with the role in catalyst testing.

The oxygen sensor before catalytic converter is a broadband oxygen sensor control sensor. Oxygen sensor heating after catalytic converter activation fault code 2a53 regards jd. 283000 oxygen sensor after catalytic converter heating activation. The broadband oxygen sensor continuously measures the residual oxygen in the exhaust gas.

I m always a bit suspicious when things happen while the car is in a garage for repair however is this most likely just a coincidence. If the sensor has power and a control activation from the. Oxygen sensors are laid out in banks which refer to cylinders and in sensor numbers referring to before or after the catalytic converter. Sensor 1 or s1 refers to the sensor before the catalytic converter.

Hi first post here hope i ve chosen the right forum. A technician can determine if the sensor is responding as it should. Obviously replacing the sensor was not the proper fix. The fluctuating values of the residual oxygen are sent to the engine control unit as a voltage signal.

Specifically that it plays no role in engine mixture control.