Bank 2 is the drivers side of the engine in a Ford Expedition
Sensor 2 is after the catalytic converter ( downstream )
On a 1997 Ford Expedition : Bank 1 is the passenger side of the engine Sensor 1 would be close to the engine before the exhaust enters the catalytic converter
Is this bank 2 sensor 1 or sensor 2?
Bank 1 is the passenger side of the engine in your Ford Expedition Sensor 1 is in the exhaust system before the exhaust enters the catalytic converter ( upstream )
On a 2000 Ford Expedition ( 4.6 and 5.4 ) Bank 2 is the drivers side of the engine Sensor 1 is close to the engine BEFORE the exhaust enters the catalytic converter
It is on the passinger side behind the converter.
on the passenger side near the y-pipe downstream of the cat.
Bank 1 is the passenger side of the engine on a Ford Expedition Sensor 2 is in the exhaust after it has passed through the catalytic converter ( downstream )
On a Ford Expedition ( 4.6 and 5.4 ) Bank 1 is the passenger side of the engine Sensor 1 would be close to the engine BEFORE the exhaust enters the catalytic converter Sensor 2 would be AFTER the exhaust has passed through the catalytic converter
Inside the exhaust. there are two on each side.
It is behind the engine, after the catalyst.
on cylinder 1 side mounted on the manifold
bank one is where the number 1 cylinder is sensor 1 is before the cat and sensor 2 is after the cat