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Q: Bank 1 Sensor 1 location on 2003 Ford Taurus

My engine light is on and I got a diagnostic of a oxygen sensor (bank 1 sensor 1) failure on my 2003 Ford Taurus and I was needing to find out where it is located so I can replace it myself. Is it located on the drivers side upfront or underneath?
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first of all, did you just have the code pulled or a real diag. a o2 code does not mean it is bad, just that it cannot do its job. you should make sure before throwing parts at it.
it is the top sensor in the back, firewall, section of the motor.

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