I used the search function but see no specific info about replacing this sensor.
I have a low voltage code so I’m going to replace it. I don’t have access to the car for another week so I can’t see for myself. I just want to know if anyone has replaced all four sensors and if any of them were particularly difficult to access.

 

All 4 sensors will cost you under 1 thousand. Are you sure you're ready for that kind of spending?

 

I bought all four from Rock Auto. NTK (same as OEM) for $260. I’m was going to put them in myself but I’ve decided to get my Acura/Honda guy to do it for 2 hours labor. So total cost will be about $500.
While he’s there he’s going to look to see if he can find any serious oil leaks. The hope is I don’t really need a rear main seal immediately. Is it worth it?
I’m sending my kid on his first long cross country drive this fall. I’d like everything working as well as possible.