[BFeller]

I ordered a pair of O2 sensors. After digging into the truck and hear sheilds to look at the rear sensors the problem was apparent. All of the wires into the plug for the drivers side sensor where hanging free. I had previously checked the connections on the wrong sensors. I had looked at the precat sensors. I went ahead and changed the post cat O2 sensor. I cleared the pending codes and drove the car with no CEL issues.