LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

2000 LS400 O2 Sensor Question

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Old 03-20-16, 05:53 PM
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idriveslow
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Default 2000 LS400 O2 Sensor Question

Hi guys, my CEL just came on and gave me the following code: P0135 Circuit Malfunction Bank 1 Sensor 1. Does anybody know which O2 sensor that is? More specifically, I'm trying to get the part number so that I can try to order it online. Thank you in advance for any help that you guys give me!
Old 03-20-16, 06:02 PM
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Oro
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1357
2468

(Front of engine is to the left above)
Odd numbered ones are bank 1.
Sensor 1 is upstream, 2 is downstream. So that would be the pre-cat one on the Passenger side.

Last edited by Oro; 03-20-16 at 06:06 PM.
Old 03-20-16, 06:50 PM
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idriveslow
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Originally Posted by Oro
1357
2468

(Front of engine is to the left above)
Odd numbered ones are bank 1.
Sensor 1 is upstream, 2 is downstream. So that would be the pre-cat one on the Passenger side.
Thank you for the quick response. Is "1357 2468" the part number?
Old 03-20-16, 07:28 PM
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billydpowe
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no that is the cylinder numbers
Old 03-20-16, 07:41 PM
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Oro
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Originally Posted by billydpowe
no that is the cylinder numbers
Yes, that's what I meant. You're welcome, idriveslow.
Old 03-21-16, 12:13 PM
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sha4000
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Bank 1 is the drivers side and sensor 1 is the sensor before the cat.
Old 03-21-16, 01:36 PM
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A Denso 2344169 will work just fine for the upstream sensors on your 2000. Should be
Old 03-30-16, 04:03 PM
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Originally Posted by Oro
1357
2468

(Front of engine is to the left above)
Odd numbered ones are bank 1.
Sensor 1 is upstream, 2 is downstream. So that would be the pre-cat one on the Passenger side.

you mean pre-cat on the drivers side right? bank 1 sensor 1
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