P1406 – EGR Valve Pintle Position Fault (Ford)

Description

P1406 Ford indicates the EGR valve pintle position signal is outside the expected range.

Want to confirm the real cause of this fault code?

A high-quality OBD2 scanner gives you live data, fuel trims, sensor readings and freeze-frame information — exactly what you need to verify the root cause of this code with confidence.

View Recommended Scanners

Symptoms

  • Rough idle
  • Stalling
  • Hesitation

Causes

  • Sticking EGR valve
  • Carbon buildup
  • Wiring issues

Diagnosis

  • Command EGR tests
  • Inspect pintle movement
  • Check wiring

Repair

  • Clean EGR valve
  • Replace EGR valve
  • Repair wiring

Related Problems