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Posted on Nov 11, 2008
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Where is sensor 1 bank 1 located on lexus rx 300 2002

Need location facing engine compartment

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  • 3 more comments 
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Facing engine bank1 sensor 1 should be the one at the firewall area in the manifold

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Jlee0135 is correct. Bank 1 sensor 1 is in the exhaust bank at the rear of the engine compartment next to the firewall. As a good general rule of thumb you can check the firing order of the engine and whichever side the #1 cylinder is on is the bank 1 side.

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Related Questions:

0helpful
4answers

Where to find a Bank 2 Sensor1/ 2007 Lexus RX350
It is located on the exhaust manifold and you will need a ratchet and a oxygen sensor socket in order to replace it.
7_1_2022_9_27_40_am.jpeg7_1_2022_9_27_50_am.jpeg
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Jul 01, 2022 • Lexus Cars & Trucks
0helpful
1answer

Where is the 02 bank 1 sensor located on a 2002 lexus rx 300
Is yours the 4 cylinder engine? There should be another number listed. The exhaust system has 2 sensors for each side, or Bank, of the engine. It will be listed as Bank One Sensor One or Bank One Sensor Two.
Sensor One is always before the Catalytic Converter, often in the exhaust manifold or the first section of the exhaust.
Sensor Two is always after the Catalytic Converter in the exhaust pipe itself.
This will be the repeated on both sides of a V6 or V8 engine. A four cylinder engine will have 2 sensors and a 'V' will have 4 sensors.
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Jul 21, 2020 • Lexus Cars & Trucks
0helpful
1answer

Need to remove oxygen sensor in bank 2 for lexus rx 300 where is it and how to removed
Bank 2 reffers to exhaust manifold where the # 2 cylinder lies. Depending on how many sensors you have on that side you will find the sensors there. The sensor clossets to the engine would be sensor 1 bank 2 and if you have another on bank 2 it be reffered as sensor 2 bank 2. The same applies for bank 1 sensors the one cossets to the engine is rtefferred to sensor 1 bank 1 and sensor 2 bank 1. Hope this helps.
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Mar 19, 2011 • Lexus RX 300 Cars & Trucks
5helpful
2answers

The engine light and VSC light are on (Vehicle Singapore 2004 Lexus RX 300. Diagnostics report Error code P0037
your o2 sensor is bad. vsc will go on for any small DTC displayed on the MIL (cel)

P0037 LEXUS P0037 LEXUS - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 2 Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
Possible causes - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection
- Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse
- Faulty Engine Control Module (ECM) When is the code detected? The P0037 is set when the ECM detects an excessively low voltage through the heated oxygen sensor heater circuit P0037 LEXUS Description Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. The faster the heated oxygen sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM).

In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor. The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECMcontrols the heater element circuit by allowing current flow to ground.

The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.

o2_heater_circuit.gif
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Mar 14, 2011 • 2004 Lexus RX 330
0helpful
1answer

My lexus rx 300 with a 1mz-fe engine shows a chek engine on the board, i have tried to solve the problem using a memo scan and it is said O2 sensor 2 bank 1 malfunction. I went to look for this sensor...
bank number would be either side of the engine(sorry im not possitive which), sensor number would be coming from engine, down the exhaust, the first sensor is number 1, Etc...
Good luck
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Jan 21, 2011 • 1999 Lexus RX 300
8helpful
1answer

Where is the bank1 sensor1 on Lexus RX300? I am getting P1135 error. Confused about which sensor it is.
Bank one is the side that cylinder 1 is located. Sensor 1 is in front of the cat converter, sensor 2 is behind the converter. So Sensor 1 bank 1 is the RIGHT FRONT SENSOR.
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Nov 05, 2009 • 2001 Lexus RX 300
0helpful
2answers

Where is Bank 2 Sensor 1 located on 99 Lexus ES 300
bank 2 sensor 1 is the one you see when facing your exhaust manifold on the right
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Jun 30, 2009 • 1999 Lexus ES 300
11helpful
1answer

Code p1130. where is the sensor located on a 2001 rx300 lexus
P1130 Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1) 
This sensor is the hardest to get at. It is between the cat and the cylinder block on the bank of cylinders closest to the firewall. Not much wiggle room back there.
 Sensor will run you about $225 from Toyota, $275 from Lexus, but you may be able to get a Denso sensor on line.
Good luck and hope this helps. keep me posted. 
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Jun 26, 2009 • 2001 Lexus RX 300
0helpful
1answer

02 sensor which is 02 bank 1 sensor ?
it is located on the right side of engine closest to the fire wall.
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Jun 15, 2009 • 2001 Lexus RX 300
0helpful
1answer

Where are knock sensors in my 99 Lexus RX 300 ?
Hello there..They are in the back of the engine block about in the middle of the motor..There might be one in the front of the engine in the middle of the block but most are in back.Hope this helps you and have a great day..

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_a3369546f8067589

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Apr 02, 2009 • 1999 Lexus RX 300
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