P1406 2011 Ford Fusion Code - DPFE Sensor Circuit Downstream Hose
Quick Answer
The purpose of the Exhaust Gas Recirculation (EGR) system on your engine is to limit oxides of nitrogen (NOx) emissions. Common causes include Downstream hose is disconnected, Downstream hose is plugged (ice), Plugged or damaged Exhaust Gas Recirculation (EGR) tube. 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 2011 Ford Fusion indicates DPFE Sensor Circuit Downstream Hose.
- Common causes
- Common causes include Downstream hose is disconnected, Downstream hose is plugged (ice), Plugged or damaged Exhaust Gas Recirculation (EGR) tube.
- 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.
Code P1406 2011 Ford Fusion Description
While driving, the exhaust gas recirculation (EGR) monitor commands the EGR valve closed and checks the differential pressure across the EGR orifice. The test fails when the signal from the differential pressure feedback EGR sensor continues to indicate EGR flow even after the EGR valve is commanded closed.
What are the Possible Causes of the DTC P1406 2011 Ford Fusion?
- Downstream hose is disconnected
- Downstream hose is plugged (ice)
- Plugged or damaged Exhaust Gas Recirculation (EGR) tube
- Faulty Differential Pressure Feedback Electronic (DPFE) sensor
- Differential Pressure Feedback Electronic (DPFE) sensor harness is open or shorted
- Differential Pressure Feedback Electronic (DPFE) sensor circuit poor electrical connection
How to Fix the DTC P1406 2011 Ford Fusion?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1406 2011 Ford Fusion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1406 2011 Ford Fusion Code
1. What does code P1406 mean on a 2011 Ford Fusion?
Code P1406 indicates an issue with the DPFE (Differential Pressure Feedback EGR) sensor circuit, specifically related to the downstream hose.
2. What are the symptoms of a P1406 code in a 2011 Ford Fusion?
Common symptoms include poor engine performance, rough idling, decreased fuel efficiency, hesitation during acceleration, or the Check Engine Light being illuminated.
3. What causes the P1406 code to appear?
The most common causes are a damaged or clogged DPFE sensor, a disconnected or cracked downstream hose, carbon buildup in the EGR system, or faulty wiring to the DPFE sensor.
4. Can I still drive my 2011 Ford Fusion with a P1406 code?
While the car may still be operable, driving with a P1406 code can lead to poor performance, reduced fuel efficiency, and potential long-term engine damage if left unresolved.
5. How do I fix the P1406 code on a 2011 Ford Fusion?
Inspect and replace the downstream hose if damaged, clean or replace the DPFE sensor, check for carbon buildup in the EGR system, and repair any damaged wiring or connectors.
6. What tools do I need to diagnose the P1406 code?
You will need an OBDII scanner to retrieve and clear the code, a multimeter to test electrical connections, and possibly basic hand tools for replacing components.
7. How much does it cost to repair a P1406 code on a 2011 Ford Fusion?
Repair costs vary, but replacing a DPFE sensor typically costs between $50 and $150 for parts, plus labor if performed by a mechanic.
8. Can a clogged EGR valve cause the P1406 code?
Yes, a clogged EGR valve or carbon buildup in the EGR passages can indirectly contribute to the P1406 code by affecting the DPFE sensor readings.
9. Where is the DPFE sensor located on a 2011 Ford Fusion?
The DPFE sensor is usually located near the EGR valve and has two hoses connected to it for measuring exhaust gas pressure.
10. How can I prevent the P1406 code from recurring?
Regularly clean the EGR system, inspect hoses for damage, and replace the DPFE sensor if it shows signs of wear to prevent future issues.
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