4 in the exhaust before the cats and after the cats
2
Four
Four
There are two.
That Vehicle has 2 oxygen sensors.
4 oxygen sensors (2 front and 2 rear)
It should have 4 of them.
Two
I'm not sure, but I do believe it's 3!!!!
Two sensors, and replace them.
The oxygen sensors control the amount fuel in the engine and if it is making too many emissions the oxygen sensors will cut back on the fuel or if they are worn out they will increase the amount of fuel. The catalytic converter will eventually get plugged up if the Oxygen sensors are bad. The oxygen sensors control the converter.