rxmpvibes

Hey everybody, my check engine light came on and the code that my OBD II is giving me is P0051. I would like to know the correct location of this Oxygen Sensor on the car and if its hard to get to. I think its Bank 2 sensor 1 (correct me if I'm wrong). From my understanding our 3UZFE engines have 4 oxygen sensors correct?

Is this the correct Part# 2344138?? (I just wanna make sure I get the correct one.)

rxmpvibes

I think I found something, this is from a 2nd Gen GS430 (3UZFE) pretty much the same exact engine:

rxmpvibes

Found some more information (LS430 and GS430 same engine):

There are four O2 sensors in the LS430. They are as follows:

Bank 1 Sensor 1 - Driver's side (left front) on exhaust header. Lexus # 89465-50120 / Denso OEM # 234-4138 / Denso Universal # 234-4209 / Bosch OEM # 13441 / Bosch Universal # 15733

Bank 1 Sensor 2 - Driver's side (rear) near catalytic converter. Lexus # 89465-50140 / Denso OEM # 234-4167 / Denso Universal # 234-4209 / Bosch OEM # 15272 / Bosch Universal # 15733

Bank 2 Sensor 1 - Passenger side (right front) on exhaust header. Lexus # 89465-50130 / Denso OEM # 234-4630 / Denso Universal # 234-4209 / Bosch OEM # 13632 / Bosch Universal # 15733

Bank 2 Sensor 2 - Passenger side (rear) near catalytic converter. Lexus # 89465-50140 / Denso OEM # 234-4167 / Denso Universal # 234-4209 / Bosch OEM # 15272 / Bosch Universal # 15733

rxmpvibes

Looks like I need Passenger Side Bank 2 Sensor 1 Denso OEM # 234-4630. Dang, I answered my own questions and helped others at the same time.

Othic

You did lol. It makes the job much easier if you have a tool like this (one on the left).

rxmpvibes

Thanks, will do! I will go ahead and get those tools.

XxGoKoUxX

You definitely did. I bookmarked this for future reference (knock on wood), if my o2 ever fails on me.

rxmpvibes

Just wanted to keep you all updated. I installed Bank 2 Sensor 1 Denso OEM # 234-4630 and it fixed my problem. No check engine light!
I used the smaller size o2 sensor socket to unintsall the old sensor and install the new oxygen sensor. To test oxygen sensors with an ohm meter to see if they are good or bad watch this video here @1:07:

masboy

iTrader: (30)

How many miles is ur gs430? When this sensor usually getting failed?

iGS430

180K, doing all 4 of mines as we speak. Got em for cheap
At https://www.densoproducts.com/Automo...cts-l1351.aspx

rxmpvibes

I have around 125K Miles.

masboy

iTrader: (30)

Man. Mine is 175k already. Seems like i might need to replace them all soon