Code 135, I need new O2 Sensor, DIY??

I had one of these o2 sensors replaced under warranty at 15k, now at 65k, I just got the 135 code that says "A malfunction Exists in THe heater circuit for Oxygen sensor 1, Bank 1"

A month ago I just replaced all 6 ignition coils, so I spent some $$$, I am really trying to save money now, so should I replace this O2 sensor myself? Has anybody tried doing it before? Is it as easy as replacing the ignition coils (which was a cinch). Any advice is appreciated!

--Paul

Replacing your 02 sensor is easy. Just go to a local parts store and they'll sell you the socket you'll need for a few bucks. Jack the car up, unplug the old one, and then use the socket on it. Look on the internet for sensors. I picked one up for $65 w/ free shipping, though i don't know the year of your ride.