If this vehicle has a 3.8 liter engine than it should have only one (1) O2 sensor.
Located in the rear exhaust manifold just above the flared connection for the connection of the exhaust pipes.
The 1992 Oldsmobile Cutlass supreme has two oxygen sensors. Both oxygen sensors are located on the outside of the air cleaner housing.
how many oxgen sensors on a 1995 millenia
My 1995 Ford Explorer with 4.0 L OHV has 2 oxygen sensors (Helpfull)
two
One
two
There are actually two oxygen sensors on a 2000 Oldsmobile Silhouette. There is one located in the exhaust system just before the catalytic converter. There is also another oxygen sensor in the air intake tube leading from the air filter.
2
any car after 1995 has two, or four oxygen sensors,as they use OBDII system
On a 1995 Ford Explorer : There are ( 2 ) oxygen sensors ( I believe there is one sensor in the outlet of each exhaust manifold )
( 2 sensors ) - # 6 fuse - 15 amp - HEGO sensors ( in the fuse panel in the drivers end of the dash )
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