P1401 2000 Ford F150 Code - DPFE Sensor Circuit High
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, Differential Pressure Feedback Electronic sensor harness is open or shorted, Differential Pressure Feedback Electronic sensor circuit poor electrical connection. 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
- P1401 2000 Ford F150 indicates DPFE Sensor Circuit High.
- Common causes
- Common causes include Faulty Differential Pressure Feedback Electronic (DPFE) sensor, Differential Pressure Feedback Electronic sensor harness is open or shorted, Differential Pressure Feedback Electronic sensor circuit poor electrical connection.
- 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 P1401 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 P1401 2000 Ford F150?
- Faulty Differential Pressure Feedback Electronic (DPFE) sensor
- Differential Pressure Feedback Electronic sensor harness is open or shorted
- Differential Pressure Feedback Electronic sensor circuit poor electrical connection
- Damaged Powertrain Control Module (PCM)
How to Fix the DTC P1401 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 P1401 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 P1401 2000 Ford F150 Code
1. What are the common symptoms of OBDII code P1401 on a 2000 Ford F150?
- Common symptoms include rough idling, decreased fuel efficiency, and potential stalling of the engine.
2. What does the OBDII code P1401 indicate in a 2000 Ford F150?
- The code P1401 indicates a potential issue with the DPFE (Differential Pressure Feedback EGR) sensor circuit being too high.
3. What are the possible causes of OBDII code P1401 on a 2000 Ford F150?
- The code P1401 is often caused by a faulty DPFE sensor, a damaged EGR valve, clogged EGR passages, or wiring issues.
4. How can I diagnose the DPFE sensor circuit high issue on a 2000 Ford F150?
- Diagnose by checking the DPFE sensor's voltage output, inspecting the EGR valve for proper operation, and ensuring the EGR passages are clear.
5. Can I drive my 2000 Ford F150 with the OBDII code P1401?
- It is not recommended to drive with the P1401 code as it can lead to poor engine performance and potential damage over time.
6. How can I repair the DPFE sensor circuit high issue on a 2000 Ford F150?
- Repair options include replacing the DPFE sensor, cleaning or replacing the EGR valve, clearing any clogs in the EGR passages, or fixing any wiring problems.
7. Will resetting the OBDII code P1401 on a 2000 Ford F150 make it go away?
- Resetting the code may temporarily turn off the check engine light, but the underlying issue causing the P1401 code will still need to be addressed for a permanent solution.
8. Is it safe to continue driving my 2000 Ford F150 if the OBDII code P1401 keeps coming back?
- It is not recommended to continue driving if the P1401 code keeps reappearing, as it can lead to further damage to the engine and emissions system.
9. How much does it cost to fix the DPFE sensor circuit high issue on a 2000 Ford F150?
- The cost of fixing the P1401 code can vary depending on the exact cause, but it may range from $100 to $300 for parts and labor.
10. Can I prevent the OBDII code P1401 from appearing on my 2000 Ford F150 in the future?
- Regular maintenance, such as checking and cleaning the EGR system components, can help prevent issues that lead to the P1401 code.
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