can anyone give me a link or tell how to

 

for the front Left one, the harness is located right inbetween the Radiator and Rocker Cover. Unplug that and cut off the tie wraps(should be 2 or 3).

for the front Right one, the harness is located on the back top of the engine somewhere. have a friend under the car and unscrew the plug and give it a tug, use a flashlight from the bottom, to follow the wire to the top to fine the harness. there are a couple of wire ties up there, so remove them as well. for your car 97-99, the o2 sensor is in the b-pipe. unscrew the o2 sensor, and follow it up to the top and there will be a black grommit, carfully remove the grommit, and there will be a white clip underneath the grommit, carefully remove that and pull out the wires slowly untill the harness comes out.

after you replace the o2 sensor reset your computer.

for the