In Reply to: Anyone replaced oxygen sensor? posted by matt on November 20, 2000 at 18:07:15:
See the website below for the location.
If you have a 540 it should be the same as the 740.
Jack up the front and use jack stands.
Spray them down with plenty of WD-40 when cold. I could not get any kind of sensor socket to work[no room]. Just cut off the connector ends and use a 22mm closed end wrench [12 point] You only have so much room to work.
Email me if you have any questions.
Did you do it yourself? Or should I have a mechanic do it? If you did it, how long did it take?