Where is the oxygen sensor bank 1 located in 1999 Honda Passport?

In a 1999 Honda Passport, the oxygen sensor bank 1 is typically located on the exhaust manifold, before the catalytic converter. It measures the oxygen levels in the exhaust gases from the engine's first bank of cylinders. If the vehicle has a V6 engine, bank 1 refers to the side of the engine that contains cylinder 1. Regular inspection and replacement of this sensor can help maintain optimal engine performance and emissions control.