P1406 2000 Ford F150 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 2000 Ford F150 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 2000 Ford F150 Description
The Ford DPFE/EGR system is controlled by the Powertrain Control Module (PCM). The system employs an EGR Valve, an Electronic Vacuum Regulator (EVR), and a Delta Pressure Feedback EGR sensor (DPFE).
The DPFE Sensor measures EGR flow across an orifice located inside the special EGR Tube. The orifice is positioned between two hose ports coming off the tube which are connected to the DPFE sensor with special heat-resistant hoses. When the EGR Valve is open, a pressure differential is created across the orifice (intake manifold pressure vs. exhaust pressure). By design, this difference in pressure is measured by the DPFE sensor in terms of voltage. The DPFE voltage signal output to the PCM is directly proportional to the flow of exhaust gas entering the intake manifold.
What are the Possible Causes of the DTC P1406 2000 Ford F150?
- 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 2000 Ford F150?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1406 2000 Ford F150 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 2000 Ford F150 Code
1. What are the common symptoms of OBDII code P1406 in a 2000 Ford F150 related to the DPFE sensor circuit downstream hose?
- Common symptoms include poor engine performance, rough idling, decreased fuel efficiency, and potential stalling.
2. What does the DPFE sensor do in a 2000 Ford F150 and how does it relate to OBDII code P1406?
- The DPFE sensor measures the flow and pressure of exhaust gases. OBDII code P1406 is triggered when there is an issue with the downstream hose connected to the DPFE sensor.
3. What are the possible causes of OBDII code P1406 in a 2000 Ford F150?
- The most common causes include a clogged or damaged downstream hose, a faulty DPFE sensor, or issues with the EGR system.
4. How can I diagnose the issue causing OBDII code P1406 in my 2000 Ford F150?
- You can start by visually inspecting the downstream hose for any signs of damage or blockage. You can also use a multimeter to test the DPFE sensor for proper functionality.
5. Can I continue driving my 2000 Ford F150 with OBDII code P1406 present?
- It is not recommended to continue driving with this code active, as it can lead to further damage to the engine and emission control system.
6. How can I repair OBDII code P1406 in my 2000 Ford F150 related to the DPFE sensor circuit downstream hose?
- Repair typically involves replacing the downstream hose if it is damaged or clogged, or replacing the DPFE sensor if it is faulty.
7. Are there any tips to prevent OBDII code P1406 from recurring in my 2000 Ford F150?
- Regularly inspecting and maintaining the EGR system, including the DPFE sensor and downstream hose, can help prevent this code from recurring.
8. Can a DIY enthusiast fix OBDII code P1406 in a 2000 Ford F150 themselves?
- Depending on their skill level, DIY enthusiasts may be able to diagnose and replace the downstream hose or DPFE sensor themselves. However, professional assistance is recommended for more complex issues.
9. Will resetting the OBDII codes make OBDII code P1406 go away in my 2000 Ford F150?
- Resetting the codes may temporarily clear the warning light, but if the underlying issue causing P1406 is not addressed, the code is likely to reappear.
10. How much can I expect to pay for repairs related to OBDII code P1406 in my 2000 Ford F150?
- The cost of repairs can vary depending on the extent of the issue and whether professional assistance is needed. Replacing the downstream hose or DPFE sensor can typically range from $100 to $300.
Discuss the causes and fixes for P1406 2000 Ford F150 OBDII Code
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Unfortunately I don't have an image of the EGR system location, just this image of the EGR system.I hope that helps.
Click here to enlarge image
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