Engine-CodesFord – P1406 2010 Ford Fusion

P1406 2010 Ford Fusion Code - DPFE Sensor Circuit Downstream Hose

Quick Answer

The P1406 diagnostic trouble code (DTC) for a 2010 Ford Fusion relates to the DPFE (Differential Pressure Feedback EGR) sensor circuit downstream hose. Common causes include Damaged or deteriorated downstream hose, Hose blockages or restrictions, Electrical issues in the DPFE sensor circuit. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P1406 2010 Ford Fusion indicates DPFE Sensor Circuit Downstream Hose.
Common causes
Common causes include Damaged or deteriorated downstream hose, Hose blockages or restrictions, Electrical issues in the DPFE sensor circuit.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P1406 2010 Ford Fusion Description

The P1406 diagnostic trouble code (DTC) for a 2010 Ford Fusion relates to the DPFE (Differential Pressure Feedback EGR) sensor circuit downstream hose. The DPFE sensor is a crucial component of the vehicle's EGR (Exhaust Gas Recirculation) system, which helps reduce emissions and improve fuel efficiency. The downstream hose connects the DPFE sensor to the EGR valve, allowing the sensor to monitor the pressure difference before and after the EGR valve.

OBDII Code P1406 2010 Ford Fusion - DPFE Sensor Circuit Downstream Hose
P1406 2010 Ford Fusion Code - DPFE Sensor Circuit Downstream Hose

Common Causes of P1406 2010 Ford Fusion

  1. Damaged or deteriorated downstream hose
  2. Hose blockages or restrictions
  3. Electrical issues in the DPFE sensor circuit
  4. Corrosion or loose connections in the sensor wiring
  5. Faulty DPFE sensor

Symptoms of P1406 2010 Ford Fusion

  1. Poor fuel economy
  2. Rough idling
  3. Hesitation during acceleration
  4. Engine stalling

How to Fix P1406 2010 Ford Fusion

  1. Begin by locating the DPFE sensor and downstream hose in the engine bay.
  2. Inspect the downstream hose for any signs of damage, leaks, or blockages.
  3. Test the DPFE sensor and sensor circuit using a multimeter to check for proper voltage and continuity.
  4. Replace the downstream hose if necessary, ensuring a secure and proper fit.
  5. Clear the DTC using an OBD-II scanner and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1406 2010 Ford Fusion

The typical repair costs for addressing a P1406 code related to the DPFE sensor circuit downstream hose in a 2010 Ford Fusion can range from $100 to $300, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to inquire about local rates for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops often offer more competitive pricing.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1406 2010 Ford Fusion Code

1. What are the common symptoms of OBDII code P1406 in a 2010 Ford Fusion?

The common symptoms include rough idling, loss of power, decreased fuel efficiency, and the illumination of the Check Engine Light.

2. What does the OBDII code P1406 on a 2010 Ford Fusion indicate?

This code indicates an issue with the DPFE (Differential Pressure Feedback EGR) sensor circuit downstream hose.

3. What are the potential causes of OBDII code P1406 in a 2010 Ford Fusion?

Potential causes include a faulty DPFE sensor, damaged downstream hose, clogged EGR passages, or wiring issues in the sensor circuit.

4. How can I diagnose the cause of OBDII code P1406 in my 2010 Ford Fusion?

Diagnosis involves visually inspecting the DPFE sensor and downstream hose, checking for clogs in the EGR passages, testing the sensor circuit with a multimeter, and scanning for any related codes.

5. Can I continue driving my 2010 Ford Fusion with OBDII code P1406?

It is not recommended to drive your vehicle with this code as it can lead to reduced performance and potential damage to the EGR system.

6. How can I repair OBDII code P1406 on my 2010 Ford Fusion?

Repair options include replacing the DPFE sensor, repairing or replacing the downstream hose, cleaning out any clogs in the EGR system, and fixing any wiring issues in the sensor circuit.

7. Is it possible to reset OBDII code P1406 in a 2010 Ford Fusion without fixing the underlying issue?

While you can clear the code with an OBDII scanner, the Check Engine Light is likely to come back on if the root cause of the problem is not addressed.

8. Are there any maintenance tips to prevent OBDII code P1406 in a 2010 Ford Fusion?

Regularly inspecting and cleaning the EGR system, ensuring proper installation of the DPFE sensor and downstream hose, and using quality fuel can help prevent this code.

9. How much does it typically cost to repair OBDII code P1406 on a 2010 Ford Fusion?

The cost of repair can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.

10. Can a DIY enthusiast fix OBDII code P1406 on a 2010 Ford Fusion?

While some aspects of the repair may be DIY-friendly, it is recommended to have a good understanding of automotive systems and access to appropriate tools before attempting the repair.

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