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AutoCodes – Ford – P1451 Ford

P1451 Ford Code - EVAP Control System Canister Vent Solenoid Circuit Malfunction

Quick Answer

The Powertrain Control Module (PCM) monitors the Canister Vent (CV) solenoid circuit for an electrical failure. Common causes include Faulty Canister Vent Solenoid, Canister Vent Solenoid harness is open or shorted, Canister Vent Solenoid electrical circuit poor connection. 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
P1451 Ford indicates EVAP Control System Canister Vent Solenoid Circuit Malfunction.
Common causes
Common causes include Faulty Canister Vent Solenoid, Canister Vent Solenoid harness is open or shorted, Canister Vent Solenoid electrical circuit poor connection.
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.
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Code Popularity 67,723
How popular is this code, among other codes? Medium
What is this?
Table of contents Created and updated by William Orellana on Aug 23, 2019
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Code P1451 Ford Description

The Powertrain Control Module (PCM) monitors the Canister Vent (CV) solenoid circuit for an electrical failure. The test fails when the signal moves outside the minimum or maximum allowable calibrated parameters for a specified canister vent duty cycle by PCM command.
OBDII Code P1451 Ford - EVAP Control System Canister Vent Solenoid Circuit Malfunction - AutoCodes.com
P1451 Ford Code - EVAP Control System Canister Vent Solenoid Circuit Malfunction
What does this mean?

What are the Possible Causes of the DTC P1451 Ford?

  • Faulty Canister Vent Solenoid
  • Canister Vent Solenoid harness is open or shorted
  • Canister Vent Solenoid electrical circuit poor connection
  • Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1451 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1451 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 P1451 Ford code?

Need more information on how to fix the P1451 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1451 Ford code diagnosed by a professional: Find a repair shop in your area

Information for Specific Ford Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1451 Ford Code

1. What are the common symptoms of OBDII code P1451 in a Ford vehicle?

- Common symptoms include the check engine light illuminating, rough idle, difficulty starting the vehicle, and decreased fuel efficiency.

2. What does the OBDII code P1451 in a Ford indicate?

- The code P1451 indicates a malfunction in the EVAP Control System Canister Vent Solenoid Circuit.

3. What are the possible causes of the P1451 code in a Ford?

- Possible causes include a faulty EVAP canister vent solenoid, damaged wiring or connectors in the circuit, a vacuum leak in the EVAP system, or a malfunctioning purge valve.

4. How can I diagnose the P1451 code in my Ford?

- A thorough inspection of the EVAP system components, checking for loose or damaged connections, testing the canister vent solenoid, and using a scan tool to monitor system operation can help diagnose the issue.

5. Can I still drive my Ford with the P1451 code present?

- It is generally safe to drive the vehicle with the P1451 code, but it is recommended to address the issue promptly to prevent potential problems with emissions and vehicle performance.

6. How can I repair the EVAP Control System Canister Vent Solenoid Circuit malfunction in my Ford?

- Repair involves replacing the faulty canister vent solenoid, repairing or replacing damaged wiring or connectors, fixing any vacuum leaks in the system, or replacing a malfunctioning purge valve.

7. Will resetting the check engine light resolve the P1451 code in my Ford?

- Resetting the check engine light may temporarily clear the code, but it will not fix the underlying issue causing the malfunction. It is important to diagnose and repair the problem to prevent it from recurring.

8. How much does it typically cost to repair the P1451 code in a Ford?

- The cost of repair can vary depending on the specific issue causing the P1451 code. Costs may include parts and labor, with an estimated range of $100 to $300 for most cases.

9. Can I prevent the P1451 code from reoccurring in my Ford?

- Regular maintenance of the EVAP system, checking for leaks, inspecting connections, and ensuring proper operation of components can help prevent the P1451 code from reoccurring.

10. Is it necessary to visit a mechanic to repair the P1451 code in my Ford, or can I fix it myself?

- While some DIY enthusiasts may be able to address the issue themselves, it is recommended to consult a qualified mechanic for proper diagnosis and repair of the EVAP Control System Canister Vent Solenoid Circuit malfunction to ensure the problem is resolved correctly.

Discuss the causes and fixes for P1451 Ford OBDII Code

Submit a New Comment

  • hello i have a problem with my 2000 ford expedition scence was filled with diesel intead of gas now when i come to a stop light or complete stop the car turns off and when i turn it back on it wont got forward even if i press the gas i wounder if the problem is in the fuel pump ..? or what is the couse of that ...?

    Reply to Comment

  • Unfortunately, running a gas engine on diesel can cause damage due to the differences in combustion properties between diesel and gasoline. Here's what you can do:

    Remove all diesel from the fuel tank and clean the fuel lines, injectors, and other affected parts of the fuel system to prevent further damage.

    Replace Fuel Filter and Components: It's highly likely that the fuel filter has been affected. Consider replacing the fuel filter and any other damaged components to ensure the proper functioning of the fuel system.

    Engine Flush: Consider performing an engine flush to remove any remaining diesel residue and contaminants from the engine. This step can help prevent potential issues caused by the wrong fuel.

    If poroblem presist after clenaing the fuel tank, flushing the engine and replacing the fuel filter, then the next step is replacing the fuel pump. If the problem is still present, then the next step is the fuel injectors.

    Reply to Comment
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