Where is the oxygen sensor on a 2000 Mitsubishi Lancer ES located?

Answer 1

Location of O2 SensorIf this is anything like the 2002 US Spec Lancer, there are 2 O2 sensors, there is one located right in front of you as you open the hood, it looks some what like a spark plug. Look straight at your engine standing in front of the car is should be located RIGHT in front of the valve cover little to the right. The second on is easier to see from the driver side, lay down and stick your head a little under the car there you see another on looking right at you on the CAT.