Start a new Ford Taurus question.i replace all oxigen sensor ford taurus 2008 check engine light still on
Have you inspected the wiring harness and connection at Bank 2, Sensor 1? If I recall, that should be the front bank of cylinders, so it should be visible from under the hood, on the side closest to the radiator. This should be the electrical connector directly next to the engine oil dipstick. Is the connector fully clipped together?
what are the codes you are getting now that you replaced the sensors?
codes 130 and 150
Did you use the factory NTK sensors? If you used something like Bosch, you're going to need to start by returning them and getting the right NTK sensors.
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