Under the vehicle bolted to the exhaust pipe.
== == 1996 Corolla's have two oxygen sensors. The first sensor, is pre catalytic converter. It is located on the exhaust manifold. The second sensor is post catalytic converter.
On a 1999 Toyota Corolla, the oxygen sensor is typically located in the exhaust system. There are usually two sensors: one upstream (pre-catalytic converter) and one downstream (post-catalytic converter). The upstream sensor is found on the exhaust manifold or near the front of the catalytic converter, while the downstream sensor is located further along the exhaust pipe after the catalytic converter. You may need to lift the vehicle or access it from underneath for better visibility.
Check the heat shield on the catalytic converter
A 2003 Toyota Corolla typically has one catalytic converter. This single unit is designed to reduce harmful emissions from the engine's exhaust system. However, some variations or specific models may have additional components, but the standard setup includes just one catalytic converter.
its long gone now, lets put it that way.
the sensor is located in the exhaust, downstream front the catalytic converter. the connector for the sensor in under the carpet on the passenger front floor near the center dash area.
Code P0136 is the code set for your O2 Sensor that is located after your Catalytic Converter.
What about it?
How much does it cost to replace the catalytic converter on a 1999 Toyota Tacoma
I am being quoted a price of $1,300 to replace the Catalytic converter on my 2004 Toyota Highlander. This quote comes from a dealer located in Central Ohio.
On a 2002 Toyota RAV4, the oxygen sensors are located in two main places: one upstream (pre-catalytic converter) and one downstream (post-catalytic converter). The upstream sensor is typically found on the exhaust manifold or just before the catalytic converter, while the downstream sensor is located after the catalytic converter in the exhaust system. Both sensors are essential for monitoring exhaust gases and ensuring optimal engine performance.
It is illegal to remove the catalytic converter from any vehicle.