P1405 2012 Ford Fusion Code - Differential Pressure Feedback Sensor Upstream Hose Off or Plugged
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 Faulty Differential Pressure Feedback Electronic (DPFE) sensor (EGR pressure sensor), Plugged or damaged EGR tube, Differential Pressure Feedback Electronic (DPFE) sensor harness is open or shorted. 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
- P1405 2012 Ford Fusion indicates Differential Pressure Feedback Sensor Upstream Hose Off or Plugged.
- Common causes
- Common causes include Faulty Differential Pressure Feedback Electronic (DPFE) sensor (EGR pressure sensor), Plugged or damaged EGR tube, Differential Pressure Feedback Electronic (DPFE) sensor harness is open or shorted.
- 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 P1405 2012 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 indicates EGR flow is in the negative direction.
What are the Possible Causes of the DTC P1405 2012 Ford Fusion?
- Faulty Differential Pressure Feedback Electronic (DPFE) sensor (EGR pressure sensor)
- Plugged or damaged EGR tube
- 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 P1405 2012 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 P1405 2012 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 P1405 2012 Ford Fusion Code
1. What does OBDII code P1405 mean on a 2012 Ford Fusion?
P1405 indicates that the Differential Pressure Feedback (DPFE) sensor upstream hose is either disconnected or clogged, which affects the exhaust gas recirculation (EGR) system.
2. What are the common symptoms of code P1405 in a 2012 Ford Fusion?
Symptoms include reduced engine performance, rough idling, poor fuel efficiency, and the check engine light being illuminated.
3. What causes the P1405 code to trigger in a 2012 Ford Fusion?
The code is typically caused by a disconnected or plugged DPFE sensor hose, a faulty DPFE sensor, or carbon buildup in the EGR system.
4. Can a clogged DPFE sensor hose damage the engine?
While it may not directly damage the engine, it can cause performance issues and increased emissions if left unaddressed.
5. How do you fix the P1405 code on a 2012 Ford Fusion?
Inspect and reconnect or replace any damaged or clogged hoses, clean carbon buildup in the EGR system, and replace the DPFE sensor if necessary.
6. How can I check if the DPFE sensor hoses are clogged?
Remove the hoses and visually inspect them for blockages or use compressed air to ensure they are clear.
7. Is it safe to drive with a P1405 code on a 2012 Ford Fusion?
Driving with this code is not recommended because it can lead to poor engine performance and higher emissions.
8. How much does it cost to repair a P1405 issue on a 2012 Ford Fusion?
Repairs can range from $50 to $300, depending on whether you need to clean the system, replace hoses, or install a new DPFE sensor.
9. Can a faulty EGR valve cause a P1405 code in a 2012 Ford Fusion?
While the EGR valve itself may not directly cause this code, a malfunctioning EGR system can contribute to associated issues.
10. How can I prevent the P1405 code from recurring?
Regularly inspect and clean the EGR system, ensure the DPFE hoses are secure, and address any exhaust or sensor issues promptly.
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