P1401 - Differential Pressure Feedback EGR sensor ( DPFE ) circuit high voltage detected
Code P1401 means:Differential pressure feedback electronic sensor circuit high voltage
P1401 is DPFE sensor circuit high, check out this tutorial to replace the sensor on your Ford
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Trouble code P1401 means: DPF EGR sensor circuit high voltage detected
insufficient egr flow
insufficient egr flow
Error Code P1401 on a 1999 Ford Ranger indicates a problem with the EGR (Exhaust Gas Recirculation) system, specifically that the EGR valve is not functioning correctly or is not receiving the proper signals. This can be due to issues such as a clogged EGR valve, a faulty EGR position sensor, or vacuum leaks. Addressing this code usually involves inspecting and cleaning the EGR system components or replacing faulty parts to ensure proper operation and reduce emissions.
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The P stands for the Powertrain. The 1 stands for Manufacturer specific. The 4 stands for Auxillary Emmission Control System. The final 0 & 1 ( as 01) identifies the section of the system that is malfuntioning.