2009 LS Sedan. 5 speed. Needs upstream O2 sensor. Where is it? Thanks!

[marcb]

Hi, I have the sensor. I am on my way to pick up an o2 sensor socket. Is this the sensor I see when I open the hood? If it's that one I will do it. If not I may not. I welcome any good advice. Thanks!!!! Marc

[avguy]

Not positive about the '09, but expect it would be the same as earlier years, which would be located by the manifold shield. No need to buy a socket unless you want to own one - Autozone has a loan-a-tool available (buy then return for full refund). Did you get the "exact fit" sensor? If not you will need to rewire the connector. Not a big deal, but exact fit is much faster and usually costs around the same.

[marcb]

Ok. Done. Piece of cake.