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Ron Z.
Ron Z., - Lexus Tech -
Category: Lexus
Satisfied Customers: 19036
Experience:  18+yrs experience. State Inspector and Lexus Diagnostics
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Lexus RX300 How to install a Air/Fuel Sensor part# 2349009

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How to install a Air/Fuel Sensor part#(NNN) NNN-NNNNin a 2001 Lexus RX300

I'm not showing that part number as a valid OEM#, nor is it matching with any aftermarket part number that I have access to. There are 2 A/F Sensors on this vehicle, of which both have the same part #. ANy chance you have a "p-code" that led you to a faulty A/F sensor, or happen to have the Bank #?


Customer: replied 6 years ago.
Here's the info you requested: Bank 2 Sensor 1

I got ther part number online when I looked for a Lexus A/F sensor. Maybe it's the Denso OE part number

Denso(NNN) NNN-NNNNOxygen Sensor (Air and Fuel Ratio Sensor)

Denso(NNN) NNN-NNNNOxygen Sensor (Air and Fuel Ratio Sensor)Brand: Denso
Category: Automotive Parts and Accessories

Sales Rank: 596

Media: Automotive
Autographed: No
Memorabilia: No
Shipping Weight (lbs): 2
Dimensions (in): 6 x 2 x 1.9

MPN: 2349009
Model: 2349009
UPC: 042511110434
EAN: 0042511110434

Ok- no Prob. Bank2 Sensor1 was all I needed.


This is actually a piece of cake to change. This A/F Sensor is located on the side of the engine closest to the front of the vehicle, mounted to the exhaust manifold. There is a special tool - Oxygen Sensor Socket - that makes this job even easier. You can usually rent (or buy cheap enough) from any parts store. Remove the "NEG" cable on the battery then simply unplug the electrical connector, then remove the sensor (very similar to a spark plug). Install the new sensor and plug it in. Reconnect the "NEG" cable and you should be good to go.


Customer: replied 6 years ago.
Just to be sure before I buy it from Denso , do I have the right part?

Yes. I just do not have access to Denso part#'s. I've only got OEM and "Standard"brand. There are only 2 A/F Sensors on this vehicle, and they are both the same part#.


Edited by DriveFast1971 on 11/8/2010 at 11:43 PM EST
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