Bank 1 is the right Bank, The way you identify bank 1 is to look for cylinder 1, you can use the valve cover, the sparkplug or fuel injector, You stand in the front of the engine (where the harmonic balancer is.) what ever the sparkplug is closet you is cylinder 1 or valve cover Anything attached to that side of the Bank is Bank 1 whether it is a exhaust manifold and leading to the catalytic convertor. The other side is Bank 2 anything attacted to that side is bank 2 whether its a exhaust manifold or catalytic convertor.
What ever is attacted to the right Bank belongs to Bank 1 , Its always where cylinder 1 is located , the other side is Bank 2 anything attacted to that is Bank 2
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