I have a 1995 Camry 4 Cylinder California car.
The car calls out for 2 O2 Sensors but I can only find 1 up front after the exhaust.
I have the car on jackstands and checked the entire exhaust for the downstream 02 sensor and cannot find another sensor.
What am I missing?
Would a VIN number help in identifying how many 02 sensors are on this car?

 

Is there an emissions convertor coming off the cylinder head? The sensor is before the converter. The sensor body sticks out forward from a metal shield covering the converter.

 

Yes there is a catalytic converter and exhaust muffler. I can clearly see the upstream 02 sensor just off the exhaust manifold on the front of the engine. I examined the entire exhaust to the catalytic converter looking for that downstream 02 sensor and its associated wire. None to be found. I even ran my hand above and around every exhaust component to the exhaust muffler and cannot find this sensor. I can send you some pictures if that would help. I do appreciate your advice.

Update:

Strangely I think I found them.
If I am not mistaken they are both accessible in the engine bay and not under the vehicle like most other cars.

Thanks for the advice!

Here is a picture.

 

You have circled the upstream and downstream sensors.

 

You got 'em!

 

Yes I changed both 02 Sensors as I did not get a check engine light but it failed HC and C02 levels. After a drive of 100 miles I took it to my smog shop and passed.
You saved me a lot repair shop money. 👍
Thanks!