Seeing as how o2 sensors are a ghost of a problem, and I personally need all the info on them I can get, I thought we could have a post on them and all info pertaining to them. Is there another o2 sensor that can be used and hard wired in to replace a fudged up o2 sensor in my ep3. Like I have heard that an o2 sensor off a 2007 civic Si is WAY cheaper and if wired in is the same difference? Its bank one sensor one on a 2002 civic Si ( Ep3 ) and do you need a specific tool to get the o2 sensor out? Are there any precautions like dont touch the tip of the sensor or whatever...