Where is the DPFE sensor located for 1998 e350?

The Differential Pressure Feedback EGR (DPFE) sensor on a 1998 Ford E350 is typically located near the EGR valve, often mounted on or near the firewall of the engine compartment. It is connected to the EGR system via two small hoses that measure the pressure difference in the exhaust gas. For precise location, it's helpful to consult the vehicle's service manual or a repair guide.