Remove it with special tool from exhaust manifold and reinstall new one with hi temperature anti-seize grease.
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.
On a 2003 Ford Taurus, the bank 2 oxygen sensor is located on the exhaust system, specifically on the rear side of the engine. It is positioned after the catalytic converter, typically on the exhaust pipe. To access it, you may need to lift the vehicle and possibly remove some components for better visibility and reach.
How do you unplug an oxygen sensor on a 2003 Chevy Cavalier
built into mass air flow sensor
how to change air temperature sensor on astra 2003 how to change air temperature sensor on astra 2003
how do you change the cooling sensor on a kia rio 2003
unplug from loom, get big spanner and unscrew from exhaust. refit in reverse
how do you change the knock sensor in a 2003 Chevy silverado 5.3
Find very good instructions with photos at: http://matrixowners.com/topic/72977-diy-how-to-change-an-oxygen-sensor-in-a-matrix/ I used them and they are easy to follow. Replacement time 15 minutes.
It is the oxygen sensor.
pass. side rear
the lamba sensor is located inside the maifold