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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.
pass. side rear
bank 1 is on the pass side bank is on driver side
Upstream, driver side.
driver side first o2 sensor
where is bank 2 sensor 1 in a 2001 ford taurus ses 6 cyl
bank 2 sensor 2 location
P1132Lack Of Upstream Heated Oxygen Sensor (HO 2 S 11) Switch, Sensor Indicates Rich (Bank#1)P1152Lack Of Upstream Heated Oxygen Sensor (HO 2 S 21) Switch, Sensor Indicates Rich (Bank #2)
Bank 1 would be the passenger (right) side of engine. Bank 1 Sensor 2 would be the O2 sensor after the catalytic converter on the passenger side.
Bank 2 is the drivers side of the engine , sensor 2 is in the exhaust pipe after the catalytic converter ( downstream )
Bank one, sensor one on a 2003 Chrysler Town and Country is in the exhaust immediately behind the engine. Sensor two is farther down in the side of the catalytic converter.
Bank 1 is the passenger side of the engine in a Mercury Mountaineer ( V6 + V8 ) Sensor 2 is after the catalytic converter ( downstream )