Hi Robert, I'm pleased to assist you. Yes, your 2017 Ford Taurus Limited 6 Cyl 3.5L does have a fuel pressure sensor. It is located on the fuel rail, which is the metal bar that runs along the top of the engine and distributes fuel to the injectors. The fuel pressure sensor is usually located near the back of the fuel rail, on the passenger side of the engine. If your mechanic is unable to find the fuel pressure sensor, it is possible that it is hidden by other components in the engine bay. He may need to remove some of these components in order to access the sensor. As for your car not accelerating, it is possible that the fuel pressure sensor is the problem. However, there are other possible causes as well, such as a problem with the fuel pump, fuel filter, or fuel injectors. It is also possible that the fuel pressure sensor is defective. If this is the case, it will need to be replaced. You can go ahead and use the link below to directly place your order. Take advantage of our low price and limited stocks. I hope this helps, and enjoy shopping! https://www.carparts.com/fuel-pressure-sensor/dorman/rb926409?can=CPGG4850_CSQA_20231123