P1400 Ford Code - Differential Pressure Feedback Electronic Sensor Circuit Low Voltage
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 Differential Pressure Feedback Electronic Sensor harness is open or shorted, Differential Pressure Feedback Electronic Sensor circuit poor electrical connection, Faulty Differential Pressure Feedback Electronic Sensor. 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
- P1400 Ford indicates Differential Pressure Feedback Electronic Sensor Circuit Low Voltage.
- Common causes
- Common causes include Differential Pressure Feedback Electronic Sensor harness is open or shorted, Differential Pressure Feedback Electronic Sensor circuit poor electrical connection, Faulty Differential Pressure Feedback Electronic Sensor.
- 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 P1400 Ford 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 P1400 Ford?
- Differential Pressure Feedback Electronic Sensor harness is open or shorted
- Differential Pressure Feedback Electronic Sensor circuit poor electrical connection
- Faulty Differential Pressure Feedback Electronic Sensor
How to Fix the DTC P1400 Ford?
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
2000-2002 Ford Taurus
2001-2002 Ford Crown Victoria
2001-2002 Ford Focus
2001-2002 Ford Mustang
2001 Ford Explorer USPS
2001-2002 Ford E Series
2001-2002 Ford Escape
2001-2002 Ford Expedition
2001-2002 Ford Explorer Sport Trac
2001-2002 Ford Explorer Sport
2001-2002 Ford F-150
2001-2002 Ford Ranger
2001-2002 Ford Windstar
2002-2003 Ford Explorer
Ford Factory Service Bulletin OBDII Code P1400 Code
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1400 Ford 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.
Need more information about the P1400 Ford code?
Need more information on how to fix the P1400 Ford code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1400 Ford code diagnosed by a professional: Find a repair shop in your area
Information for Specific Ford Models
- P1400 1997 Ford F150 — Differential Pressure Feedback Electronic Sensor Circuit Low Voltage
- P1400 1998 Ford F150 — Differential Pressure Feedback Electronic Sensor Circuit Low Voltage
- P1400 1999 Ford F150 — Differential Pressure Feedback Electronic Sensor Circuit Low Voltage
- P1400 2000 Ford F150 — Differential Pressure Feedback Electronic Sensor Circuit Low Voltage
- P1400 2001 Ford F150 — Differential Pressure Feedback Electronic Sensor Circuit Low Voltage
- P1400 2002 Ford F150 — Differential Pressure Feedback Electronic Sensor Circuit Low Voltage
- P1400 2003 Ford F150 — Differential Pressure Feedback Electronic Sensor Circuit Low Voltage
Frequently Asked Questions about P1400 Ford Code
1. What are the common symptoms of OBDII code P1400 in a Ford vehicle?
The common symptoms of OBDII code P1400 in a Ford vehicle may include poor engine performance, rough idling, decreased fuel efficiency, and potential stalling.
2. What does the OBDII code P1400 in a Ford vehicle indicate?
OBDII code P1400 in a Ford vehicle indicates an issue with the Differential Pressure Feedback Electronic (DPFE) sensor circuit registering low voltage.
3. What are the possible causes of OBDII code P1400 in a Ford vehicle?
Possible causes of OBDII code P1400 in a Ford vehicle include a faulty DPFE sensor, damaged wiring or connectors in the sensor circuit, or a problem with the vehicle's electronic control module (ECM).
4. How can I diagnose the cause of OBDII code P1400 in my Ford vehicle?
Diagnosing OBDII code P1400 in a Ford vehicle typically involves checking the DPFE sensor for proper operation, inspecting the sensor circuit wiring for damage, and using a scan tool to monitor sensor voltage readings.
5. Can I continue driving my Ford vehicle with OBDII code P1400?
It is not recommended to continue driving your Ford vehicle with OBDII code P1400, as it can lead to further engine issues and potential damage if left unresolved.
6. How can I repair OBDII code P1400 in my Ford vehicle?
To repair OBDII code P1400 in a Ford vehicle, you may need to replace the DPFE sensor, repair any damaged wiring or connectors in the sensor circuit, or reprogram the ECM if necessary.
7. Is it possible to reset OBDII code P1400 in a Ford vehicle without fixing the underlying issue?
Resetting OBDII code P1400 in a Ford vehicle without fixing the underlying issue will only temporarily clear the code, and the issue is likely to reoccur if not properly addressed.
8. Can a DIY enthusiast fix OBDII code P1400 in a Ford vehicle?
A DIY enthusiast with automotive repair experience may be able to diagnose and fix OBDII code P1400 in a Ford vehicle, especially if they have the necessary tools and resources.
9. How much does it typically cost to repair OBDII code P1400 in a Ford vehicle?
The cost to repair OBDII code P1400 in a Ford vehicle can vary depending on the specific issue causing the code, but it may range from $100 to $300 for parts and labor.
10. How often does OBDII code P1400 occur in Ford vehicles?
OBDII code P1400 can occur in Ford vehicles with DPFE sensor systems, especially in older models or those with high mileage, due to sensor wear and wiring issues over time.
Discuss the causes and fixes for P1400 Ford OBDII Code
-
I got a 2002 Ford Taurus I got a code p1400 also code p0193 cars bucking like it's going to run out of gas or starving for gas almost feels like transmission going in and out at sometimes how would I go about checking to see if the pressure sensor is getting poor or short in the electrical lines would the pressure sensor make the car buck like it running out of gas and anybody can help please
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Yes. Please read the "Factory Service Bulletin" listed on the "Tech Notes" above . Follow the instruction in the bulletin to repair the problem.
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