Question

Where is bank 1 located on a mitsubishi montero xls 3.5 located?

Answer 1

 

Bank 1 location is always where cylinder 1 is located,

 

Here is the firing order where cylinder 1 and 3 and 5, this is Bank1, Sensor 1 would be the upstream, Sensor 2 are catalytic monitor sensor, Where cylinder 2 , 4 and 6, This is Bank 2.