Thanks Will :pimp: The dealership would've charged me over $100 if I let them do it.

Did you do it? Good results?

It will be here on Monday and will do it then. Sounds easy enough. I'm guessing the harness I disconnect is right up the wire from the sensor, right? And I should tighten it by hand or should I use the wrench a bit? Thanks again. I can't wait to see my gas mileage improve!!!!!! I'll definetely let you know the results!

Harness is there. You can't miss it. Without a torque wrench, just tighten FIRMLY. Don't muscle it. Firmer than snug, but not hard enough to strip threads!

Got mine from gmpartsdirect.com yesterday. Went to Sears got a crowfoot and did it right in the parking lot. Uh Will, I notice u said don't touch the element. Why? What could happen? :?

As a general rule of 'thumb' (no pun intended) you don't want finger oils (skin oil to be more general) on ANY detector, sensor, or lamp. Especially the high-wattage lamps like the headlamps and driving lamps. Your skin oils heat up and can react with the O2 sensor. The actual element in the O2 is inside the ventilated area of the sensor, but like I said.....general rule of thumb, or just best practice.

Do the O2 sensors have a shelf life bec I mistakenly ordered 2. Tryin to decide to return or hang up in basement for next replacement :?

No shelf life. Maybe I should say INDEFINITE shelf life. Kinda like a twinky.

Leave it in the plastic and save it for a rainy day. No prob.

do you need to put any sealant or anything to make sure that the connections are airtight?

There should already be a small amount of anti-seize compound on the threads. If it'* an AC Delco, just trust that it'* there. If it'* aftermarket, check, and put a small amount on if necessary. Keeps it from getting bound up in there for the next change.