What does code P1403 mean on Ford vehicles?
The DPFE sensor hoses are connected incorrectly.
OBD-II Code Ford
P1403 — Ford — DPFE Hoses Reversed
The DPFE sensor hoses are connected incorrectly.
Common symptoms
- Unstable idle
- high emissions
Possible causes
- Incorrect installation
- improper maintenance
Initial recommendation
Correct the DPFE hose connections.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
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