I know this is a minor repair, but can you believe the dealership wanted over $700 to change both my pre-cat O2 sensors after the Malfunction Indicator Lamp (MIL) / Check engine Light went on?

Time spent was well worth the $500 saved.

Finished doing a write-up on it:
http://monkeeworks.com/go_O2

http://www.monkeeworks.com/projects/auto/LX470.o2/pt1.diag/o2LeftPos.lt.0.jpg

Thanks,
Clifford Vincent Arrow
monkeeworks.com (http://monkeeworks.com)