I used this a couple years ago. Another member of Tundra Solutions posted this solution after disconnecting the harness on the Sensors.Thanks for the response Paul. I did the PB Blaster but it didn't help. I borrowed a kit like this from my neighbor,
Turned them right off.
Also, for anyone else having any issues, another trick I picked up. I did all four sensors and for the life of me could not get the connections
clipped back together on the upstream passenger side. I could only get one hand up there then couldn't see what I was doing. I messed with it for at least 30 minutes before I gave up. Solution- Sweet talked my lovely bride and her little girly hands to climb down under my truck! We got down there (I held the light) She reached up with both hands with room to spare and see and CLICK! She even threw in a little smart ass comment like "Really...that little thing was kicking your ass!"
https://www.craftsman.com/products/craftsman-10-pc-damaged-bolt-nut-remover-set-low-profile-bolt-outI'm glad it all worked out in the end for you. What is the kit that you borrowed from your neighbor? I have never seen anything like that!