What causes P1400 on a Ford?

Failed DPFE sensor stuck low Open DPFE signal wire Disconnected or split EGR pressure hoses Corroded DPFE connector Lost sensor reference voltage

How do I fix P1400 on a Ford?

Inspect the DPFE hoses for disconnection, splits and melting Check reference voltage and ground at the sensor Read DPFE voltage KOEO and compare to spec Repair hose or wiring faults found Replace the DPFE sensor if the circuit is good but voltage stays low

P1400 Differential Pressure Feedback EGR Sensor Circuit Low Voltage

Q: What does P1400 mean on a Ford?

P1400 — Differential Pressure Feedback EGR Sensor Circuit Low Voltage. Applies to F-150, Ranger, Explorer, Taurus, Focus with DPFE-based EGR.

Category: Powertrain - Auxiliary Emissions Controls
Severity: Check Engine Light
Applies to: F-150, Ranger, Explorer, Taurus, Focus with DPFE-based EGR

What does P1400 mean on a Ford?

P1400 — Differential Pressure Feedback EGR Sensor Circuit Low Voltage. This Ford-enhanced code applies to F-150, Ranger, Explorer, Taurus, Focus with DPFE-based EGR.

Common causes of P1400

Failed DPFE sensor stuck low
Open DPFE signal wire
Disconnected or split EGR pressure hoses
Corroded DPFE connector
Lost sensor reference voltage

How to fix P1400

Inspect the DPFE hoses for disconnection, splits and melting
Check reference voltage and ground at the sensor
Read DPFE voltage KOEO and compare to spec
Repair hose or wiring faults found
Replace the DPFE sensor if the circuit is good but voltage stays low