where is the 02 heater sensor on my 1.8 2001 picasso the heater wont work and the wires going to the control panel are dead someone told me it was the 02 sensor but dont no were to find it

george woods, September 2010

In general,the o2 sensor is located in the exhaust or manifold, prior to the catalytic convertor. the o2 sensor normally has a heater built in to it,because it only works properly when its hot, it will also have one after the catalytic convertor to monitor that the cat is doing it's job.Not sure what wires you are refering to, or what control panel.

jim, September 2010