On a 2001 Ford Taurus :
firewall
1-----2-----3 ( Bank 1 )
4-----5-----6 ( Bank 2 )
front of vehicle
( sensor 2 would be after the exhaust has passed through the catalytic converter , also called the downstream sensor or catalyst monitor sensor )
where is bank 2 sensor 1 in a 2001 ford taurus ses 6 cyl
The bank 1 oxygen sensor on a 2003 Ford Taurus is located on the motor. It is on the top, back part near the firewall.
Bank 2 is the drivers side of the engine in your Ford Explorer Sensor 2 is after the catalytic converter ( downstream )
Bank 1 is the passenger side of the engine ( V6 and V8 ) in a 2001 Ford Explorer Sensor 1 would be close to the engine before the exhaust enters the catalytic converter
bank 2 is the drivers side of the engine and sensor 2 is downstream of the catalytic converter
On a 2001 Ford Mustang , 3.8 liter V6 engine : Bank 1 is the passenger side of the engine Sensor 1 would be close to the engine BEFORE the exhaust enters the catalytic converter
Bank 2 is the driver side of your engine ( V6 or V8 ) on your Ford F-150 Sensor 2 is after the catalytic converter ( downstream )
Trouble Code P1151 means:Lack of HO2S bank 2,sensor 1 switches,sensor indicates lean
That code indicates a fault in the 'downstream heated O2 sensor' , bank 2.That code indicates a fault in the 'downstream heated O2 sensor' , bank 2.
Bank 2 is the drivers side of the engine Sensor 1 is before the exhaust enters the catalytic converter ( upstream )
You need to change the downstream sensor that is after the Catalytic Converter
On a Ford Expedition , 5.4 and 4.6 Bank 2 is the drivers side of the engine Sensor 2 is in the exhaust AFTER the catalytic converter ( downstream sensor also called the catalyst monitor )