Hey guys i did some quick searching but couldn't find anything..

My car is up in the air right now, and I'm just looking for a quick answer..

The stock wires for the post-cat O2 sensors are Blue, white, black, black

The wires on the new Walker Universal sensors are Grey, black, white white



What do I connect to what???

 

why in the world are u using universal 02 sensors? also why r u changing out the downstream 02's? the denso number is 2344603, u start changing the length of the wires and u have created a resistance problem, i dont know how much of an effect it will have on a post cat 02 but i sure wouldnt put any universal crap on my car

 

A lot of members have used the Walkers with no problems. Obviously I already have the Walker sensors. So there is no reason I need Denso part #'s. I hope MY choice in parts for MY car hasn't offended you TOO much!


Thanks for the help

Let's keep this thread on topic please.

 

no its not that its just i sell parts for cars all day long and ive heard the stories from shop owners as well as the mechanics who have used universal 02's...no answer to my question...why are u changing ur downstream 02?

 

i've used universal (denso) o2 sensors on a few of my cars and havent had any issues.

walker's website SHOULD have a pinout for which wire is which on the sensor.

 

Thanks for clarifying that that Python


Thanks PD, is there any pinout for the OEM sensor?

 

Looks like i got a good link

http://us.lexusownersclub.com/forums...opic=42632&hl=

 

glad you found it all i know is the matching ones are for the heater circuit .

 

Haha yeah. Well my CEL hasn't come back on yet **knock on wood** after replacing the gaskets. So if all stays well I'm not even going to worry about replacing them.