I wasn't aware that there was a middle oxygen sensor. I have a 1997 Villager that was vandalized and the catalytic converter and O2 sensors were stolen. From what my mechanic tells me and Auto Zone there are only 2 sensors, one in front of the catalytic converter and one behind it.
That would be the O2 sensor after the catalytic converter. This sensor monitors the efficiency of the catalytic converter.
The upstream sensor is located on the exhaust manifold, front of the engine easily accessible from the top. The downstream sensor is after the catalytic converter, on the exhaust, underneath the car. The connector is next to the oil filter.
Bank 1 sensor 2 is the sensor after the catalytic converterBank 1 sensor 2 is the sensor after the catalytic converter
unplug the connector, remove the oxygen sensor, it is located under the vehicle at the catalytic converter. install new oxygen sensor, plug in connector. done.
The oxygen sensor on a 1999 Honda Civic is located on top of the catalytic converter. The catalytic converter is under the car.
Usually after your catalytic converter. Usually after your catalytic converter.
The second oxygen sensor is now used downstream of the catalytic converter to monitor converter operating efficiency.
That is the oxygen sensor screwed into the downstream side of the catalytic converter.That is the oxygen sensor screwed into the downstream side of the catalytic converter.
Post is the O2 sensor located behind the converter and Pre is the sensor located in front of the converter. Sometimes also referred to as upstream and downstream.
Downstream O2 sensor is an O2 sensor after the catalytic converter. Upstream O2 sensor is an O2 sensor before the catalytic converter.
I believe bank 1 sensor 1 is Passenger side before catalytic converter. sensor 2 is after catalytic converter. bank 2 sensor 1 is Driver side before catalytic converter. sensor 2 is after catalytic converter.
Sensor 1 would be before the catalytic converter ( upstream ) Sensor 2 is after the catalytic converter ( downstream )
my guess would be a catalytic converter going bad. you can remove the front oxygen sensor and drive it. if the problem goes away then it is probably the catalytic converter. nth njth ///////???????????????????kldghavnivaetahdsngahe
Passenger side after the catalytic converterPassenger side after the catalytic converter
It is screwed into the forward side of the catalytic converter.It is screwed into the forward side of the catalytic converter.
I believe there are ( 4 ) Bank 1 is the passenger side of the engine , sensor 1 is before the catalytic converter ( upstream ) and sensor 2 is after the catalytic converter ( downstream ) Bank 2 is the driver side of the engine , sensor 1 is before the catalytic converter ( upstream ) and sensor 2 is after the catalytic converter ( downstream ) The 2 sensors before the catalytic converter are used for air / fuel ratio for the engine The 2 sensors after the catalytic converter are called catalyst monitors
The downstream O2 sensor is located at the catalytic converter or in the exhaust pipe directly behind the catalytic converter. The upstream O2 sensor is threaded into the topside of the exhaust manifold - just before the flex connector - and can be difficult to access. Good luck!
the sensor is located in the exhaust, downstream front the catalytic converter. the connector for the sensor in under the carpet on the passenger front floor near the center dash area.
There is two oxygen sensors. One is located before the catalytic converter is located under the heat sheld. The oxygen sensor after the catalytic converter is found under the catalytic converter (under the car) before the catalytic transfer pipe.
On the catalytic converter or exhaust manifold On the exhaust manifold or catalytic converter
If the catalytic converter is defective more than likely the O2 sensor is defective.
You have 2 sensors. The pre-converter O2 senser is located in the exhaust manifod ahead of the catalytic converter. The post-converter O2 sensor is located in the exhaust pipe after the catalytic converter. * Let the exhaust system cool. * Raise and secure the vehicle. * Disconnect the electrical connector from the sensor * Using a suitable wrench or special oxygen sensor socket, unscrew the sensor from the exhaust manifold or exhaust pipe. * Use some anti-seize compound on the threads of the sensor so that you can easily change them in the future. * Install the sensor and tighten. * Reconnect the electrical connector for the sensor and lower the vehicle
Sensor 1 is screwed into the front of the catalytic converter. Sensor 2 is screwed into the pipe after the catalytic converter.