on the rear exhaust manifold, directly behind the motor
Im the exhaust pipe.
O2 sensors are always located on the exhaust system.O2 sensors are always located on the exhaust system.
The O2 sensor is right off of the rear exhaust manifold, right of the transmission fluid dipstick.
the vehicle in question has 2 oxygen sensors one in the manifold and one by the converter.
This is one of the two sensors which is downstream directly after the catalytic converter.
for a 97-03 grand prix there is a front and rear o2 sensor. bank 1 sensor 2 is the sensor located on the exhaust near the catalytic converter (cat) also known as the REAR sensor... bank 1 sensor 1 is located on the back of the engine on top of the exhaust manifold or headers would be the street term. thats the FRONT sensor.
no, these are unrelated to O2 codes. O2 cannot affect manifold pressure or intake air temp and of course not trans clutch.
In the exhaust pipe.
if your check engine light is on change your o2 sensor. a bad o2 sensor will cause bad gas milage. also a dirty air filter or dirty injectors.
most o2 sensors on any car are located in the exhaust you should have 1 before that cat and 1 after and they are cylinder shaped with 4 wires coming out
There are 2 oxygen sensors. 1 sensor located right behind the engine (which is known as the upstream sensor) and one behind the catalytic converter (known as the downstream sensor). It is located at about the middle point of the vehicle on the top of the pipe. You will need an O2 sensor socket to remove the upstream sensor, and you will need an O2 sensor wrench with a pivoting handle to remove the downstrean sensor.
I believe the O2 sensor heater is a fused circuit, you will need a wiring diagram to tell which one it is.