RX300 2004 Bank 2 sensor 1 location

[CASIN0]

Just got myself a Lexus RX300 after being a strictly German car man, however I may now be becoming a convert! You certainly get a lot for your money.

Does anyone know where the Bank 2 sensor 1 is located on  RX300 2004?. I think I have found it, but I need to make sure I am removing the right sensor. All other information I could find related to pre 2004 models and the engine lay out is not the same.

If anyone is able to get a picture of the sensor location. that would be great.

Thanks in advance for your help.

[tayaste]

Sensor 1 is the A/F sensor, located in the exhaust manifold. I haven't got a photo unfortunately. But sent you a link.

[CASIN0]

Thanks for the link. I'm not very good at reading engine diagrams, so I'm still none the wiser. I'm a beginner when it comes to fixing cars, I'm afraid.

[tayaste]

Can you post a photo of where you think it is in your car, then we can confirm. It is the first sensor directly in the exhaust manifold coming from the cylinder head, usually has a 4-5 inch cable and plug going into your harness.

[CASIN0]

I'll get one when I am at home later on today. Thanks for your help.

[sorcerer]

51 minutes ago, tayaste said:

Sensor 1 is the A/F sensor, located in the exhaust manifold. I haven't got a photo unfortunately. But sent you a link.

Stephen, any particular reason why you sent a link privately to John instead of just posting in the topic? Just thinking that knowledge like this may be useful to others in the forum as well.

[tayaste]

Nope, wasn't sure if it was against any forum rules or anything, that's all.

[sorcerer]

2 hours ago, tayaste said:

Nope, wasn't sure if it was against any forum rules or anything, that's all.

Fair enough. I can't see why it would be but if a mod can clarify that would be great, thanks.

[CASIN0]

Heres a couple of pics. I have zoomed in where I think the sensor is.

 

[tayaste]

Yes that's Bank 2, sensor 1 (AF sensor). 

[tayaste]

19 minutes ago, sorcerer said:

Fair enough. I can't see why it would be but if a mod can clarify that would be great, thanks.

John, it was an early tsb showing location of AF sensor and how to distinguish bank 1 and 2 on various models, but I'm unsure of the rules posting these docs.

[CASIN0]

It seems a bit of a pain to remove. The clip is hidden, so I had to follow the wire with my hand. Also the sensor is not easy to undo without an O2 sensor tool. I'll probably give it a go on Friday when I am off work. 

Hopefully that will sort out the P0051 code I have. Also hope the sensor I bought is the correct one. 

[tayaste]

Good luck 

Have a look at the multi plug tabs on your new one to give you an idea how to unclip the old one from the harness.

[CASIN0]

Thanks for your help!

[tayaste]

You're welcome. 

[Verbout]

If you put "O2 sensor RX 300" into your search engine, then select images, there are lots of schematics showing you where all the sensors are.

[CASIN0]

4 hours ago, Verbout said:

If you put "O2 sensor RX 300" into your search engine, then select images, there are lots of schematics showing you where all the sensors are.

I did look on Google, but I don't really understand the diagrams. The only pics I found were for older RX's