it is a tuff one,it wll come out.you did not mention year mine is a 89 and their is one behind muffler,i think the newer ones have only 2.
im trying to replace my 02 sensors and all I see is 2, they are bolth before the cats. I was woundering if there are any after that I diddnt see, Also how the heck is a guy supposed to get the one on the driverside?? its jammed in there!!
All '94-'97 V8 MN12's all have two before and two after the catalytic converters. The two before the cats are for engine fuel management while the two behind the cats are strictly for letting the EEC know if the cats are working....Remember 02 sencors are never after the cats always before in any car