Number 1 is in the engine compartment.
there are two oxygen sensors. One is located in the exhaust manifold inside the engine compartment. If you have a 4 cyl model it will be where the 4 pipes merge in to 1. The second sensor is located after the catalytic converter.
I can only find two sensors, engine compartment, pre and post catitytic converter. Ideas, suggestions .......... help, please? Where are the missing two?
All O2 sensors are threaded into the exhaust system at various points. Upstream O2 sensors are located before the catalytic converter(s) and downstream O2 sensors are located after the catalytic converter(s).
there are 4 sensors. 2 pre cat sensors and 2 post cat sensors. the pre cat sensors (both) are located in the overhead engine compartment towards the passenger side. the post cat converter's are located underneath and to the mid section of the engine and a pain to get to. hope this helps.
2 sensors. One is on the back of the engine near the wall of the engine compartment. the second one is on the exhaust pipe under the middle of the car near the catalytic converter. if you change both and you still have a check engine code. it may be the catalytic converter that is bad
In the exhaust between the engine and the catalytic converter.
The engine will not run properly with out a functioning catalytic converter and working O2 sensors.
The O2 sensors are located between the exhaust manifolds and the cat converter. They screw in to the head pipes. Those are also called upstream O2 sensors and in some vehicles they are also called air/fuel sensors. There are also downstream O2 sensors that are located after the catalytic converter.
there are two sensors, one located before the catalayic conveter which is accessiable from under the hood towards the back of the engine compartment and the second is located under the vehicle after the catalayic converter.
There are two sensors in that exhaust system. Only one is called an O2 sensor and it is located in the exhaust system after the catalytic converter, also known as downstream.. The other sensor is called an Air/Fuel Sensor and is located before the catalytic converter, also known as upstream.
before and after the catalytic converter.
There are 4 sensors,,2 before the converter and 2 after on the exhaust system