LS430 Oxygen O2 Sensor Location and Part Numbers

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07-06-24, 11:47 AM

#76

KawiLex

Pit Crew

Join Date: Dec 2012

Location: MO

Posts: 176

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Quote:

Originally Posted by lesnagy

Directly after I replaced Bank1 sensor2 O2 sensor my Nav system has an error that it cant read the data and to check DVD version. Is it possible that I pulled some cable or connection while getting the O2 sensor installed ? It seems to be too much of a coincidence that the Nav error hit just as I worked in the driver side area close to the stereo wire harness. Thoughts?

This is what i was thinking when reading about the downstream sensors that require you to pull carpet etc... Clip wires, solder new on... So easy... Dont forget the rubber protector that goes over the solder points.

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07-08-24, 10:56 AM

#77

rickcad

6th Gear

Join Date: May 2012

Location: CA

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Quote:

Originally Posted by Bocatrip

At approximately what mileage are the O2 sensors going bad or can it happen at any time?

My 2002 LS430 passenger side rear O2 sensor went bad after only 40,000 mi.
It is 2024 and I only have a little over 50,000 mi on the vehicle and so far no other sensors have gone bad.

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09-30-24, 07:46 PM

#78

DC777

Driver

Join Date: Aug 2021

Location: TX

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Help!Pigtail for O2 sensor is trashed

I discovered my O2 sensor Bank 2 Sensor 1 wires are trashed due to PS fluid leaking on them. I’ve got a 2004 LS 430 UL with over 200k miles. The alternator went bad as while removing it I noticed these wires. Any advice on how to remove the pins from this pigtail? I’ve pulled out the little white part in the center but cannot figure out how to release these pins.