There are two of them.
Only one.
4 cylinder Camry has 2 oxygen sensors.
The 2002 Toyota Camry XLE has four oxygen sensors. There are two sensors on the exhaust manifold ,and one before and one after the catalytic converter.
It depends on number of cylinders the engine has. 4 cylinder engine has 2 oxygen sensors. V6 has at least 3.
What type of sensors are you talking about? There are many sensors, and many different types.
There are 3 Oxygen Sensors on a 97 Toyota Camry with a 3.0 liter v6.An oxygen sensor is mounted on each exhaust manifold (left and right), And the third is mounted on the exhaust pipe after the catalytic converter.
I'm not sure for the 07,but the 04 V6 has four,the I4 has two. Probably the same for the 07.
You have two oxygen sensors in Toyota Rav4, One before the catalytic converter and another after.
At least two.
none
2
4 all together