you have 2 , look at your exhaust manifold there should be something sticking out with wire or wire going to a plug, there is another on your catalytic converter.
Bank one is the side of the engine with cylinder #1. Sensor 2 is after the catalytic converter.
It has oxygen sensors before and after the catalytic converter.
There is one in front of and one behind the catalytic converter.
Go to Kia dealer to ask for its cost
I have a code DTC P0154.Bank 2 Sensor 1 no activity.Which sensor is this on my 96 Blazer?
Its right by the intake manifold, unscrew the 2 screws and follow the wire to the harness and unplug, see pictures, http://media.photobucket.com/image/1993%20mazda%20mx6%20tps/mrmx6/throt.jpg
In my '96 K2500 it is between the exhaust manifold and the catalytic converter.
Locate the sensor on the exhaust system unplug it ,unscrew it and replace it in reverse. Pretty simple. Autozone will lend you a special socket needed to go around the wires if needed
Where is location transmission plug on Mazda 96 626
There are two of them, one on either side of the catalytic converter in the exhaust system.
It is screwed into the manifold (4-cyl) or front exhaust pipe (V6).
If you have an oxygen sensor problem then there should be a check engine light "on." Have a repair shop scan and diagnosis the problem. You may not truly have a problem with the oxygen sensor as it could be a vacuum leak that makes the o2 sensor set a code.