I need to know how to replace the front o2 sensor, not the rear one. The sensor seems to be in a very inaccessible location. Is it possible to replace it without removing the entire exhaust system?

What's the easiest way to replace it?

 

Yes it is possible and pretty easy to replace so long as you have an O2 socket and it is not seized. SEARCH.

 

Thanks for replying

ok,

https://www.rx8club.com/series-i-tec...nstall-209661/

 

its not that easy, sadly. The sensor requires a low profile ratchet and socket.

Also I cant get to the electrical connector, it seems like its dorsal-ly covered by another piece of the car.

can anyone help?

 

I have done it many times on RX-8's But yeah if you don't have the right tools it might be a PIA.

 

The front O2 sensor connector is located at the top of the trans bellhousing where it meets the engine

unbolting the AC line bracket from the driver side firewall will let you get your hand in easier, kind of a PITA to reach it, but do-able