Question

Where is O2 sensor bank 1 sensor 1 located in 2002 Chrysler 300m

Answer 1

Bank 1 Sensor 1 , Bank 1 is located where cylinder 1 is at, that  side becomes Bank 1, the other side is Bank 2, Sensor 1 are Engine management sensor these are upstream 02 sensor,

Here use the identification for the number 1 cylinder where 1,3,5 are located this is Bank 1,  Sensor 1 is the 02 sensor before the catalytic convertor