emg2919

Anybody replaced this? I've read a lot on here of LS430 replacement but haven't seen any SC430 replacement. It's the same, I assume?

I just ordered this:
https://www.rockauto.com/catalog/mor...728&cc=1377817

Denso 2344138

Which from my research and knowledge, should be correct. Drivers side, upstream, bank 1 sensor 1 for P0135 error.

I've done this on Hondas, BMWs and VWs before, just not my lexus yet. Hopefully it's fairly straight forward.

FlopTop04

Yes, it is the drivers side O2 sensor before the catalytic converter. While you have to remove a plastic under-engine cover, it is the easier one to replace. ( The rear O2 sensors' harness goes into the vehicle and connects under the console stack area. )

emg2919

Great, thanks! Will do it next weekend..

Harold57

I believe that there are one or two theads on the O2 sensors, including a couple of pdfs with locations.

emg2919

Ok. Just had this replaced. Cleared the code, and now, code p0125 shows up! What gives? Anybody seen this happen before, you change and fix one thing only to have another code pop up? Aggravating.

emg2919

I think the toyota dealership either installed it incorrectly, broke something, or it's a faulty o2 sensor. Only way to tell is to take it out and check resistance. Probably just going to take it to the dealer like I should have in the first place...

P0125 after P0135, what a pain.

emg2919

Heard back from Lexus dealer...apparently there was a 'chaffed' wire somewhere that was causing the P0125 after the P0135 was fixed when I had the O2 sensor replaced. Still waiting to get it back, hopefully today.

ShawnOk

iTrader: (1)

Any news on this? I just got a CEL that shows the same code P0135. What should I tell me mechanic to be careful of to avoid the P1025 code?

If anyone has any pics on a DIY, I would really appreciate as it is the easier one to do and I might take it on myself.