AutoCodes – Ford – P1451 1999 Ford F150

P1451 1999 Ford F150 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 1999 Ford F150 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 9,039

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 23, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1451 1999 Ford F150 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 1999 Ford F150 - EVAP Control System Canister Vent Solenoid Circuit Malfunction - AutoCodes.com — P1451 1999 Ford F150 Code - EVAP Control System Canister Vent Solenoid Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P1451 1999 Ford F150?

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 1999 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1451 1999 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.

Need more information about the P1451 1999 Ford F150 code?

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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 1999 Ford F150 Code

1. What are the common symptoms of OBDII code P1451 on a 1999 Ford F150?

- Common symptoms include the Check Engine light illuminating, rough idling, decreased fuel efficiency, and a noticeable fuel odor.

2. What causes the OBDII code P1451 on a 1999 Ford F150?

- The most common cause is a malfunction in the EVAP Control System Canister Vent Solenoid circuit, which may be due to a faulty solenoid, wiring issues, or a bad connection.

3. How can I diagnose the EVAP Control System Canister Vent Solenoid circuit malfunction on my 1999 Ford F150?

- Diagnosis typically involves using an OBDII scanner to retrieve the specific trouble code, visually inspecting the solenoid and its wiring for any damage, and testing the solenoid's functionality.

4. Can I continue driving my 1999 Ford F150 with the P1451 code present?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent any potential damage to the vehicle's emissions system.

5. What are the repair options for fixing the EVAP Control System Canister Vent Solenoid circuit malfunction on a 1999 Ford F150?

- Repair options may include replacing the vent solenoid, repairing or replacing damaged wiring, checking and securing connections, and clearing the trouble code.

6. How much does it typically cost to repair the P1451 code on a 1999 Ford F150?

- The cost of repair can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Can I reset the Check Engine light after fixing the P1451 code on my 1999 Ford F150?

- Yes, you can reset the Check Engine light by using an OBDII scanner to clear the trouble code after the repair has been completed successfully.

8. Will the P1451 code cause my 1999 Ford F150 to fail an emissions test?

- Yes, the presence of the P1451 code indicates an issue with the EVAP system, which can cause the vehicle to fail an emissions test.

9. How often does the EVAP Control System Canister Vent Solenoid circuit malfunction occur in a 1999 Ford F150?

- This issue can occur sporadically and may not be a common problem, but it is important to address it promptly to maintain proper vehicle operation.

10. Is the EVAP Control System Canister Vent Solenoid circuit malfunction covered under warranty for a 1999 Ford F150?

- Warranty coverage depends on the specific terms of your vehicle's warranty, so it is recommended to check with your dealership or refer to your warranty documentation for more information.