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OneOne
Yes.
1985 to 1995 have 1 1996 on up have 2
1995 vehicles did not have post cat o2 sensors.
There are four o2 sensors on a montero sport.
( two ) I believe they are in the outlets of the two exhaust manifolds
It should have 2 and they are screewed into the exhaust system/Pipes.
how many o2 sensors on a ford e350 van 2003
All O2 sensors are threaded into the exhaust system at various points.
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
The 2.5 has 2 O2 sensors (both on top of the engine) and the 3.5 has 4 O2 sensors (two on top, and two under the car).
There is a total of 3 O2 sensors 2 Upstream and 1 Downstram