If it is bad the check engine light will come on and set a code for that particular sensor.
Not likely. A bad O2 sensor would illuminate the check engine light and the engine performance would suffer.
engine will stall out and run very bad.
The check engine light will illuminate if you have a bad O2 sensor. The code set will lead you to the faulty sensor.
When a O2 sensor goes bad the check engine light will illuminate. The code set in the ecm will lead you to which O2 sensor is bad.
They generally set a trouble code and the check engine light illuminates.
The check engine light would illuminate and the code set would help lead you to which sensor is at fault.
The check engine light would illuminate and the code(s) set would lead you to which O2 sensor is at fault or why the sensor set the code.
exaust leaks , faster if its before the 02 sensor
02 sensor
First you need to find which one is bad. After you find out which one is bad you remove the 02 sensor from the exhaust pipe with an 02 sensor socket. Then you disconnect the sesor from the electrical connector. After that you can install the new one. Be carefull it's not the easist job to do in the drive way.
If your car has OBD2(96 and newer) they will hook up a code reader. If you do have a bad O2 sensor the scanner can tell which one is bad. Most v6 and v8 engine have 4 sensors.