To find it, you'll need to:
1. Consult a repair manual: A Chilton's or Haynes manual specific to your year and model Taurus will have a diagram showing the exact location of the DPFE sensor. This is the most reliable method.
2. Visually inspect the intake manifold: Look near the EGR valve (Exhaust Gas Recirculation valve), which is usually on the back or side of the intake manifold. The DPFE sensor is a small, rectangular or cylindrical sensor with a vacuum hose connected to it and usually two electrical connectors.
3. Use online diagrams: Some automotive parts websites (like AutoZone or Advance Auto Parts) allow you to enter your vehicle's information and view diagrams of the engine bay. This can give you a general idea of the sensor's location.
Remember to be careful when working near the engine, as it can be hot. Always disconnect the negative battery cable before working on any electrical components.