the 02 senser is on the manifold by the firewall on the passenger side under the hood [ behind and undr the spark plugs]
The oxygen sensor is located on your lower exaust pipe just before the cat underneath the car
replace ign sw on 1991 volvo 240
The earlier version was in the exhaust pipe after the catalytic converter. Later it was moved foward to the cat itself.
All you have to do is look at your exhaust manifold there is a sensor screwed into your manifold ,that is plugged into a connector on the left side of motor unsrew the sensor and unplug the sensor wire and that is all you do and replace with a new sensor really simple fix
Probably not, but it will certainly cost in fuel, performance and excessive emissions.
It has ( one oxygen sensor ) on the 1991 and 1992 Ford Explorers
Unplug it then unscrew it then put anti seize compound on the threads of the new one and screw it in.
motorcraft . com just shows ( 1 ) oxygen sensor for all available engines in a 1991 Ford Ranger
they are located on the exhaust manifolds
The 1991 Cadillac Deville oxygen sensors are located on the firewall and the air cleaner housing. The firewall oxygen sensor will be on the drivers side. The air cleaner oxygen sensor will be on the back of the air cleaner housing.
There would be no reason to replace it unless it is not working.
the o2 sensor is located on the exaust manifold