Bank 1 is closest to the firewall
On a 2003 Toyota ( Tacoma / Tundra ) bank 1 is the PASSENGER SIDE of the 3.4 liter DOHC , V6 engine
bank 1 is the passenger side of the engine and bank 2 is the drivers side , on a V6 ( and V8 ) engine
Bank 1 is the passenger side of the engine in your Ford Ranger V6
On a 2003 Toyota Highlander with a V6 3.0 engine, Bank 2 Sensor 1 refers to the upstream oxygen sensor located on the exhaust manifold on the driver's side. Bank 2 corresponds to the side of the engine that does not contain cylinder 1, which is the passenger side in this configuration. To access it, you may need to remove certain components for better visibility and reach.
On a Ford Mustang ( V6 and V8 ) Bank 1 is the passenger side of the engine
2001 Toyota tacoma bank 1 means that it is located before the cadalic converter.
Bank 1 is the passenger side of the engine in a Ford Mustang ( V6 and V8 )
On your 1999 Ford F-150 , 4.2 liter V6 engine : The left bank is the drivers side of the engine ( or bank 2 ) The right bank is the passenger side of the engine ( or bank 1 )
The V6 engine in a Ford Escape : firewall 1-----2-----3 ( Bank 1 ) 4-----5-----6 ( Bank 2 ) front
Passenger side is bank 1 & Driver side is bank 2
On a 2002 Ford E-150 , 4.2 liter V6 engine : Bank 1 is the PASSENGER SIDE of the engine
Bank 1 is the passenger side of the engine in your Mercury Mountaineer ( V6 and V8 ) and bank 2 is the drivers side of the engine