The oxygen sensors in a 2000 Lexus RX 300 are located in two main areas: one is positioned in the exhaust manifold before the catalytic converter (upstream sensor), and the other is located after the catalytic converter (downstream sensor). To access the sensors, you may need to lift the vehicle and remove any protective covers or components obstructing the exhaust system. It's advisable to consult the vehicle’s repair manual for specific details and instructions.
18 Millimeter, 1.5 Pitch
in the car
under the intake manifold
It is caused by Bank 2 Sensor 2 oxygen sensor failing.
inside the exhaust and by dissasembling and swapping it out
In the gas tank
Let me know if you find out. i am having trouble locting which one is 1 and which is 2... I was told i needed to replace the #1 oxygen sensor
Depends on year to 93 there are 2. 94 and later there are 3 (one post cat)
The sensor runs under the seat and out to the exhaust pipe under the back of the car. You will have to remove the two bolts holding the seat to replace it.
Cylinders 1,3, and 5, the sensor after the catalytic converter. Find the exhaust pipe coming from the front of the vehicle and follow it until you see the O2 sensor after the catalytic converter.
To replace the oxygen sensor (sensor 1, bank 1) on a Lexus SC 300, first, ensure the engine is cool and disconnect the negative battery terminal. Locate the sensor, typically found on the exhaust manifold or upstream of the catalytic converter, and unplug the electrical connector. Use an O2 sensor socket or wrench to carefully unscrew the old sensor, then install the new sensor by threading it in and tightening it securely. Finally, reconnect the electrical connector and the battery terminal before starting the vehicle to check for proper operation.
In a 2002 Lexus RX 300, Sensor 1 Bank 1 refers to the upstream oxygen sensor located on the driver's side of the vehicle, before the catalytic converter. To replace it, first, ensure the engine is cool and disconnect the negative battery terminal. Then, locate the sensor, unplug the electrical connector, and use an oxygen sensor socket or wrench to unscrew it from the exhaust pipe. Install the new sensor by reversing these steps, ensuring it's securely tightened and the connector is reattached.