P1931 Ford Code - Fuel Additive Pump Control Circuit/Open
Quick Answer
The P1931 Ford code indicates a problem with the fuel additive pump control circuit being open, meaning there is a lack of continuity in the circuit that controls the fuel additive pump. Common causes include Faulty fuel additive pump, Damaged wiring or connectors in the control circuit, Blown fuse. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1931 Ford indicates Fuel Additive Pump Control Circuit/Open.
- Common causes
- Common causes include Faulty fuel additive pump, Damaged wiring or connectors in the control circuit, Blown fuse.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1931 Ford Description
The P1931 Ford code indicates a problem with the fuel additive pump control circuit being open, meaning there is a lack of continuity in the circuit that controls the fuel additive pump. The fuel additive pump is responsible for injecting fuel additives into the fuel system to improve combustion efficiency, reduce emissions, and maintain the overall health of the engine. When this circuit is open, the fuel additive pump may not function properly or at all, leading to potential issues with engine performance, fuel efficiency, and emissions control.
Common Causes of P1931 Ford
- Faulty fuel additive pump
- Damaged wiring or connectors in the control circuit
- Blown fuse
- Malfunctioning fuel additive control module
Symptoms of P1931 Ford
- Reduced engine power
- Rough idling or stalling
- Poor fuel economy
- Increased emissions
- Check engine light illuminated
How to Fix P1931 Ford
- Begin by conducting a visual inspection of the wiring and connectors in the fuel additive pump control circuit to check for any visible damage or corrosion. Repair or replace any damaged components.
- Test the fuel additive pump using a multimeter to ensure it is functioning correctly. Replace the pump if it is faulty.
- Check the fuse related to the fuel additive pump control circuit and replace it if necessary.
- If the issue persists, diagnose the fuel additive control module for any faults and replace it if needed.
- Clear the diagnostic trouble codes from the vehicle's memory using a scan tool and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1931 Ford
The typical repair costs for addressing a P1931 Ford code related to the fuel additive pump control circuit/open can vary depending on the specific cause of the issue and the cost of parts and labor. In general, the cost of replacing a fuel additive pump can range from $200 to $500, while replacing a control module can cost between $300 and $600. Labor costs can add an additional $100 to $300, depending on the shop's hourly rates and the complexity of the repair. It is important to note that these are rough estimates, and actual repair costs may vary based on the vehicle make and model, as well as the location and rates of the auto repair shop.
Need more information about the P1931 Ford code?
Need more information on how to fix the P1931 Ford code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1931 Ford code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1931 Ford Code
1. What does OBDII code P1931 mean on a Ford vehicle?
P1931 indicates a problem with the fuel additive pump control circuit, such as an open or malfunctioning connection.
2. What are the common symptoms of code P1931 in a Ford?
Symptoms may include the check engine light turning on, poor fuel efficiency, or issues with the diesel particulate filter (DPF regeneration process).
3. What causes code P1931 in Ford vehicles?
Common causes include a faulty fuel additive pump, damaged wiring or connectors in the control circuit, or issues with the PCM (Powertrain Control Module).
4. How can I troubleshoot code P1931 on my Ford?
Start by inspecting the wiring and connectors for damage or corrosion. Test the fuel additive pump for proper operation and check for PCM-related errors.
5. Can I drive my Ford with code P1931 active?
Driving with this code active may lead to DPF regeneration failure, which can cause increased emissions and potential engine performance issues over time.
6. How is code P1931 fixed in a Ford vehicle?
Repairs may involve replacing the fuel additive pump, repairing damaged wiring, or reprogramming/updating the PCM.
7. Does code P1931 affect the DPF system on Ford vehicles?
Yes, this code can prevent proper DPF regeneration, leading to soot buildup and reduced efficiency.
8. Is code P1931 specific to diesel Ford vehicles?
Yes, it typically appears in diesel models equipped with a fuel additive system to support the DPF.
9. How much does it cost to fix code P1931 on a Ford?
Repair costs can vary but may range from $150 to $500 depending on whether the fuel additive pump or wiring needs replacement.
10. Will clearing code P1931 solve the problem on my Ford?
Clearing the code without addressing the underlying issue will not resolve the problem and may cause the code to reappear.
Discuss the causes and fixes for P1931 Ford OBDII Code
Code P1931 Ford comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.