Rencently in the last 2 months I have changed both O2 sensors in my SVX while at the same time installed a tranny cooler and filter. I was down there anyway. I removed both O2 sensors with a just a squirt of PB Blaster penerating oil and large vise grips. It was easy to remove once the rust was loosened. As far as the electrical connection. You have to figure out how it is connected and once you figure how it works, all you need is a very small flat tip screw driver and carefully separate the connection. So I think of that tool as a bunch of B.S. that you need it to take off the O2 sensors. Yea right! Saved $10.00 bucks, priceless
