pinpoint location of bank one on 2001 Toyota MR2 Spyder

where exactly is bank one censor one located in my 2001 toyo mr2 spyder.

1 answer
Bank 1 is wherever #1 cylinder located.
i.e.: if #1 cylinder's exhaust pipe and #3 connected together that's Bank 1.
If #1 and #2, than that is Bank 1.
Are you trying to figure out which one is the B1S1 O2 sensor?