The Oxygen (O2) sensors located in the catalytic converters help to keep the vehicle running cleaner. If an oxygen sensor goes bad, the vehicle might start to misfire occasionally. The catalytic converter can become plugged up if the oxygen sensor is not working properly. This could lead to the vehicle not running at all.
There are 2 upstream 02 sensors just behind the exhaust manifolds, threaded into the exhaust pipes, one on each side. There are 2 downstream 02 sensors just behind the catalytic converters, one on each side as well.
After the catalytic converter. My GT actually has four O2 sensors, two before and two after the catalytic converters (one for each bank of cylinders).
first of all the 3.8 is a v6 second the o2 sensors (2 of them) are in the down pipes just before the catalytic converters
4 sensors, 2 are pre-catalytic convert and 2 are post-catalytic converter
There is an 02 sensor ahead of the catalytic converter and one downstream of it.
two on before the catalytic and one after
All O2 sensors (AKA Air/Fuel sensors) are threaded into the exhaust system. Some before the catalytic converter (upstream) and some after the catalytic converter (downstream).
look under you Chevy and locate the catalytic converter. Your 02 sensors are located before and after the catalytic converter on your muffler. See 1 or 2?
They are in front and in back of the catalytic converter on the exhaust pipe.
There are four oxygen sensors. Two are pre-catalyst and two are post-catalyst oxygen sensors. Basically, there is one sensor for each side of the engine in front of the catalytic converter and there are two sensors behind the catalytic converter.
There are multiple O2 sensors on a 2002 Chevy truck. They are all located on the exhaust system. There will be pre catalytic converter and post catalytic converter sensors.
It will run, but not correctly.It will run, but not correctly.