The passenger side of the engine
On a 2000 Ford Crown Victoria : Bank 1 is the passenger side of the engine , Bank 2 is the drivers side
Bank 1 is the passenger side of the engine on your Ford Crown Victoria
Bank 2 is the drivers side of the engine in your Crown Victoria
On a 1999 Ford Crown Victoria : Bank 1 is the passenger side of the engine Bank 2 is the drivers side of the engine
bank 2 is the drivers side of the engine on your V8
Bank 1 is the passenger side of the engine on your Ford Crown Victoria Sensor 1 would be in the exhaust close to the engine before the exhaust enters the catalytic converter
Bank 1 is the passenger side of the engine , bank 2 is the drivers side of the engine
Bank 2 is the drivers side of the engine on your Crown Victoria Sensor 1 is in the exhaust before it enters the catalytic converter ( upstream )
Bank 2 is the drivers side of the engine in your Ford Crown Victoria Sensor 2 would be in the exhaust after the catalytic converter ( downstream )
On a Ford Crown Victoria : Bank 2 is the drivers side of the engine Sensor 1 would be close to the engine BEFORE the exhaust enters the catalytic converter
On a 2002 Ford Crown Victoria : Bank 2 is the drivers side of the engine Sensor 2 ( downstream sensor ) would be in the exhaust after the catalytic converter
On our crown Victoria we had an intermittent check engine light with the error codes "bank 1 and 2 too lean". I tried replacing the fuel filter with no luck. A short while later I had a intake manifold crack and had to get it replaced. My mechanic cleaned the MASS AIRFLOW SENSOR and this seemed to fix the check engine light.