Where is the O2 sensor located on my 96 gsr? Is it difficult to replace myself?

 

welcome to the forums.. you should go to your local auto parts store and get a chilton or haynes auto manual.. they will show you exactly where your O2 sensor that you need to replace is at and the best way to do it.. seeing as how there are 2 O2 sensors though you need to find out which one is bad