Was is DPFE

DPFE stands for Differential Pressure Feedback EGR (Exhaust Gas Recirculation) sensor. It is used in automotive applications to monitor the pressure difference in the EGR system, helping to optimize the recirculation of exhaust gases back into the engine. This process reduces nitrogen oxide (NOx) emissions and improves fuel efficiency. A malfunctioning DPFE sensor can lead to poor engine performance and increased emissions.