I know, old thread--but I just did mine and thought i'd add to help out:
'98 Camry, 5S-FE, 98k miles.
1.) Instead of using the torch and vise grip, I used a 14" Pipe Wrench. Put it over the bolt (where your socket/vise grip would go) and go at it. It was hard, but I sprayed some WD-40 a couple times, and it came off. It helps if you have a longer handle (more torque), so 14"+ would probably be even easier.
2.) It is not necessary to take off the seat (although I did). You can feel around and figure out the rubber grommet as well as the plug. Push the seat forward and use a flash light.
3.) I got the BOSCH brand o2 sensor (OE type), it comes with the rubber grommet, the wire clip (that clips on outside the car). In this way, it was a easy job--no need to save the old harness or anything like that.
4,) I put the new sensor on with an adjustable wrench.
'98 Camry, 5S-FE, 98k miles.
1.) Instead of using the torch and vise grip, I used a 14" Pipe Wrench. Put it over the bolt (where your socket/vise grip would go) and go at it. It was hard, but I sprayed some WD-40 a couple times, and it came off. It helps if you have a longer handle (more torque), so 14"+ would probably be even easier.
2.) It is not necessary to take off the seat (although I did). You can feel around and figure out the rubber grommet as well as the plug. Push the seat forward and use a flash light.
3.) I got the BOSCH brand o2 sensor (OE type), it comes with the rubber grommet, the wire clip (that clips on outside the car). In this way, it was a easy job--no need to save the old harness or anything like that.
4,) I put the new sensor on with an adjustable wrench.