1989 300te-
My mechanic says that I probably need a new oxygen sensor (poor fuel milage for example). Seems like a task I can handle, but I have no manual.
There are also several types of sensors...how do I know what is right for my car (I saw ones for $30, and ones for $120). I believe the 1989 takes only ONE...correct?
Any helpful hints on selection and replacement of the O2 Sensor ?