Oxygen Sensor of Honda Civic LX 2003 (sedan style)?
 

Dear all,I would like to ask about oxygen sensor matter of my car, and hopefully, someone will point out a solution. My question is: I know my car have two oxygen sensor (one in the front and one in the rear). However, I cannot locate the rear one. If anyone know about it, then please help me out. The solution would be better and understandable if you provide me with the picture.Thanks in advance,

Yes, there are 2. One forward of the catylitic converter, in your exhaust, and one after. Sometimes factories will stick them on the end of the catylitic converter itself. Supposedly saves space or something. Might be there on your car...Hope this helps, good luck.