its for a 02 sensor p2251 "o2 sensor negative current contoul circuit open bank 1 sensor 1" is this the 02 sensor by the rad on the manifold im seeing?? and are both bank 1 sensors the same and are the bank 2 sensors the same too or all different?? they want a pile of money here for 1 like 300$ im not paying that at all. looking on ebay and trying t ofigure out what I need. thanks!

 

Bank 1 is the side of the engine closest to firewall and is the harder oxygen sensor to get to vs bank 2 (front)

 

ok thanks same sensor front and back