You will have the check engine light on. Oxygen sensors throw very specific codes. Basically you need to use an error code reader. I did and it said the o2 sensor, in my Volvo 2001 s40 has two of them and I need to know which one to change?
All O2 sensors are threaded into the exhaust system at various points. Most vehicles have more than one O2 sensor. Need to know which O2 sensor you are looking for, need more info.
You need a engine scanner and hook it up and it will tell you what sensor is bad.
Do you know your alphabet ? o2 sensor ?
Depends on what the problem is or what code was set.
how do i know if the o2 sensor is bad. The check engine light would illuminate and the code(s) set would steer you to the faulty O2 sensor.
To change an O2 sensor you need to disconnect the wiring harness from the sensor. Use an O2 sensor socket and ratchet set to remove the old sensor and replace with the new one.
to change o2 sensor ,you need to buy a o2 sensor socket from a parts store then disconnect neg terminal on battery ,after that disconnect wire connecter on o2 sensor and remome o2 sensor
When a O2 sensor goes bad your check engine light will go on and set a code.
No it will not. You have another problem. Need to know what your working on. YEAR,TAPE,MODEL
Replace it.
There are 4 of them on the car, so you need to know which one is faulty. To replace them is the same for all. Disconnect the connector to the faulty o2 sensor and using a o2 sensor socket or a wrench that will fit unscrew the sensor. Install the replacement sensor and reconnect the wire.
usually bank 1 is the bank with # 1 cylinder in it and sensor # 1 is the front o2 sensor(usually in the manifold). You will need a O2 sensor socket or a 22mm wrench or deep socket.