Jasoneo5

iTrader: (4)

Weird thing came up today...went to go buy some Post-Cat O2 sensors for my 05 LS430 and all the ones on Ebay are 4-wire. When I went to go look at the ones on my car now, they are only 2-wire.

I have had exhaust work done, and currently have a P0430 light, so I am replacing the O2 sensors first.

I also have a CEL eliminator, but my light is still on, and I was told that the CEL eliminator will not fix my check engine light if the O2 sensors are bad.

So again: Are the POST Cat O2 Sensors 2 wire or 4?
And just for clarification, what are the upper (header) O2 sensors?

Thanks
Jason

Jasoneo5

iTrader: (4)

Nevermind, figured out the issue...go ahead and close thread...