BurgBoxstr

Twins! Mine too is an '04 who just turned 127k and my B1S1 O2 went back in Sept.

Mileage at the time was ~ 111k - used the Bosch b/c Denso would've taken 2-3 days to get in via parts store.

O2s are usually good for 100k so I got +11% on one and the others I'm +27% and rolling

Good luck

TopGear300

That is funny, and really exactly when mine went out.

I don't suppose you still have the link of the new sensor you bought?


And on a separate note: has any one here had a GX with a speedo problem? I am in desperate need of some advice here I'm just seeing high bills and my inspection is due in June and I don't have the money to fix it HELP

https://www.clublexus.com/forums/gx-...eedo-help.html


You guys are da best

BurgBoxstr

Sorry, I do not. It was a Bosch O2 at AdvanceAuto... they recommended b/c the Denso was only available for order and 3-4 days out. Think it might have been ~ $100 but I used one of their readily available 20% off coupons. As mentioned previously, stick w/ only Denso or Bosch.

TopGear300

After you have installed the new sensor....do the lights go off and the code is erased and re-set or do you still have to do that manually?

rbx10

Thank you very much for the post. I may use it some day.

rahiman9

dear all,

I am using lexus Rx 350 and having problem with bank 2 sensor 1 after diagnosis the system. please help to find the location

chiph9

Sorry, this forum is for the GX. Try posting in the RX forum for the generation of your SUV.

Chip H.

rahiman9

tz693

This is GX470 forum. You need to post on RX350 forum to get answer.

pmendonc

Thank you for this write up. I followed these steps to fix my P0051 code. The special wrench is a must. I bought one from Auto Zone and returned it for a full refund.
My check engine light went off the following morning, one day after replacing the sensor.

47BA

What year is yours? I’m looking at my 07 and wondering if I can even get to it myself.

agent15

I'm in my garage right now trying to figure this out on my '06 with 110k to cure a P0031 code (driver side).

Unfortunately it appears the sensor on that side may have already been replaced. If that's the case, I fear I may be looking at exhaust manifold replacement because I can hear it leaking.

agent15

I got the driver side sensor replaced. Figuring out how to undo the clip took a ridiculously long time - as did figuring out how to get my hands actually in there to do it - but it I wanted to test the sensor first. This appears to have resolved the CEL after clearing and checking codes. 🤞

Now that I've had something to eat, and cooled off both figuratively and literally, it's on to the passenger side (preventive while I'm here).

As for the clip, I had success getting a finger on the back of the release on the harness, while wedging it against the block for leverage.