Ford Error Code P1401: How to Fix It

Q: What does Ford error code P1401 mean?

P1401 indicates the DPFE (Differential Pressure Feedback EGR) sensor is reading a high input signal, suggesting a problem with the EGR system monitoring circuit that could affect emissions and engine performance.

Q: Can I drive with Ford P1401 error code?

Yes, you can typically drive with P1401, but your vehicle may experience rough idling, reduced fuel economy, and will likely fail emissions testing. Address the issue promptly to avoid potential engine damage.

Q: How much does it cost to fix Ford P1401?

Fixing P1401 typically costs $50-200 if you replace the DPFE sensor yourself, or $200-400 at a shop including labor. Additional costs may apply if EGR valve or vacuum hoses need replacement.

Q: What causes Ford DPFE sensor to fail?

DPFE sensors commonly fail due to carbon buildup from exhaust gases, age-related electrical component degradation, damaged vacuum hoses, or contamination from oil or coolant leaks.

Abstract

Ford error code P1401 indicates a problem with the DPFE (Differential Pressure Feedback EGR) sensor circuit showing a high input signal. This sensor monitors exhaust gas recirculation flow and when it malfunctions, your Ford may experience rough idling, poor fuel economy, or failed emissions testing.