Noob O2 Sensor Question

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Mar 25, 2020
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Upstate SC
My tech stream shows bank 1 sesnor 1 code. I want to replace the sensor, but have a question on the part. The Lexus dealer wants $220, and Advanced Auto has two different Denso parts that both say they are for the upstream sensor. The dealer is also further away, by about 20 minutes, so I don’t want to drive that far unless it is needed.

So which sensor should I get, and/or should I replace both sensors since the vehicle has 318,000 miles?

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BullElk

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Which month and year vehicle?

This should show you what you need.

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FYI they're $43 on Amazon. I would only replace what's needed but know that the other *may* fail in the near future.
 
Joined
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Messages
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Upstate SC
Which month and year vehicle?

This should show you what you need.

I have a 2005 LX470. So if I’m reading it right, the Denso parts are interchangeable even if the Toyota parts are different. I assume sensor 1 bank 1 is left side???

FYI they're $43 on Amazon. I would only replace what's needed but know that the other *may* fail in the near future.

Which vendor? Do you have a link?
 
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You'll need to know if your LX was manufactured before or after May, check your VIN. Then you'll either need PN 234-4138 (before 5/05) or 234-9051 (after 5/05). If you're after May, you're out of luck, it's going to be $100 ea.
 
Joined
Mar 25, 2020
Messages
115
Location
Upstate SC
You'll need to know if your LX was manufactured before or after May, check your VIN. Then you'll either need PN 234-4138 (before 5/05) or 234-9051 (after 5/05). If you're after May, you're out of luck, it's going to be $100 ea.

Looks like I’m good.

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