you got 2 sensors,both in the exhaust ,1 before the converter and another after the converter,Danny
Where is the O2 sensor on 1993 Toyota Mr2
2001 Toyota tacoma bank 1 means that it is located before the cadalic converter.
The O2 sensor on a Toyota Corolla is located on the exhaust manifold. The O2 sensor properly reads the air fuel ratio to tell the engine how much fuel to use.
Remove the vacuum hose from the O2 sensor. Remove the wiring harness. Remove the O2 sensor retaining screws. Reverse the process to install the new O2 sensor.
I found some good reference info on this topic at: http://www.4crawler.com/4x4/O2SensorWireColors.html Accordingly the sensor wire colors for Toyota O2 sensors (from the sensor to the plug) would be as follows Blue = Sensor + White = Sensor - Black = Heater Black = Heater
I found some good reference info on this topic at: http://www.4crawler.com/4x4/O2SensorWireColors.html Accordingly the sensor wire colors for Toyota O2 sensors (from the sensor to the plug) would be as follows Blue = Sensor + White = Sensor - Black = Heater Black = Heater
For the 1993 Toyota Tercel, the O2 sensor has three different wire colors. These colors are: black, blue, and white.
See related link which includes instructions for testing any O2 sensor.
I'm not sure about 40% but it WILL reduce gas mileage I'm not sure about 40% but it will for sure reduce your gas mileage. 40% does extremely high for just one O2 sensor
The one closest to the exhaust manifold is the upstream O2 sensor.
It screws into the catalytic converter.
O2 sensor