there are several sensor, you can go to autozone.com and find out where they are
The O2 sensor on any vechicle will be located on the exhaust manifold.
In the 2002 Ford Explorer Sport, sensors are located in various key areas. The most notable ones include the engine compartment, where you can find the mass air flow sensor and temperature sensors, as well as the wheel speed sensors located at each wheel for the anti-lock braking system. Additionally, there are oxygen sensors located in the exhaust system. Each of these sensors plays a crucial role in the vehicle's performance and diagnostics.
That would depend on what year of Ford Explorer and which engine you have ( my 1995 Ford Explorer with the 4.0 liter OHV , V6 engine has ( 2 oxygen sensors )
Ford did not start using knock sensors on the Ford Explorer engines until 1996, when they switched to the EEC-V system.
on the exhaust y-pipe there is one on each side of the engine
there is no cable you have speed sensors located in the tail shaft of the transmission
On a 1995 Ford Explorer : There are ( 2 ) oxygen sensors ( I believe there is one sensor in the outlet of each exhaust manifold )
My Chilton repair manual - engine wiring schematic shows ( 2 ) heated oxygen sensors for the 1993 Ford Explorer
4
2
there are sensors all over the engine, transmission, chassis, etc.
there are 4 o2 sensors