3
there are two oxygen sensors mounted in either the manifolds or close to the engine in the y pipe . 1996 and newer have 4 or downstream sensors after the catalyic converter
I have a 1996 cadillac deville concours, an it has 4 oxygen sensors
two
two
4
two
It has two.
== == 1996 Corolla's have two oxygen sensors. The first sensor, is pre catalytic converter. It is located on the exhaust manifold. The second sensor is post catalytic converter.
Two, one before the cat, one after.
Two, One on the exhust manifold and the second after the CAT
normally all o2 sensors are before and after the catalitic converters. you need to contact the dealer and or Advance auto can tell you how many you have. they will have two wires and a plug you can follow up to it. You can also use a wrench to get them out. You do not need the special socket.
It has four oxygen sensors.