there are special sockets you can buy at a auto parts store that are used to take them off. they have to be made for 02 sensors to accomidate the wires and the extra length of the sensor.
Dec 27, 2007 at 10:26 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.