AutoCodes – Ford – P0451 2008 Ford Fusion

P0451 2008 Ford Fusion Code - Evaporative Emission Control System Pressure Sensor Range/Performance

Quick Answer

This DTC sets for a fuel tank pressure (FTP) sensor range (offset) concern. Common causes include Faulty Fuel Tank Pressure Sensor, Fuel Tank Pressure Sensor Harness is Open or Shorted, Fuel Tank Pressure Sensor Circuit Poor Electrical Connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: P0451 2008 Ford Fusion indicates Evaporative Emission Control System Pressure Sensor Range/Performance.
Common causes: Common causes include Faulty Fuel Tank Pressure Sensor, Fuel Tank Pressure Sensor Harness is Open or Shorted, Fuel Tank Pressure Sensor Circuit Poor Electrical Connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 3,663

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0451 2008 Ford Fusion Description

This DTC sets for a fuel tank pressure (FTP) sensor range (offset) concern. The FTP sensor output is offset by greater than 1.7 inches of water or less than -1.7 inches of water.

OBDII Code P0451 2008 Ford Fusion - Evaporative Emission Control System Pressure Sensor Range/Performance - AutoCodes.com — P0451 2008 Ford Fusion Code - Evaporative Emission Control System Pressure Sensor Range/Performance

What does this mean?

What are the Possible Causes of the DTC P0451 2008 Ford Fusion?

Faulty Fuel Tank Pressure Sensor
Fuel Tank Pressure Sensor Harness is Open or Shorted
Fuel Tank Pressure Sensor Circuit Poor Electrical Connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0451 2008 Ford Fusion?

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 P0451 2008 Ford Fusion 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 P0451 2008 Ford Fusion code?

Need more information on how to fix the P0451 2008 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0451 2008 Ford Fusion code diagnosed by a professional: Find a repair shop in your area

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 P0451 2008 Ford Fusion Code

1. What are the common symptoms of OBDII code P0451 in a 2008 Ford Fusion?

- Common symptoms include the check engine light being illuminated, rough idling, decreased fuel efficiency, and the smell of gasoline.

2. What does the OBDII code P0451 in a 2008 Ford Fusion indicate?

- This code indicates an issue with the Evaporative Emission Control System Pressure Sensor Range/Performance.

3. What are the possible causes of OBDII code P0451 in a 2008 Ford Fusion?

- Possible causes include a faulty pressure sensor, damaged wiring or connectors, a leaking fuel tank, a loose gas cap, or a problem with the evaporative emission control system.

4. How can I diagnose the OBDII code P0451 in my 2008 Ford Fusion?

- Diagnosing this code typically involves using an OBDII scanner to retrieve the code, inspecting the pressure sensor and related components, checking for leaks in the system, and testing the sensor's voltage and signals.

5. Can I continue driving my 2008 Ford Fusion with OBDII code P0451?

- It is not recommended to drive the vehicle with this code present, as it can lead to increased emissions, decreased fuel efficiency, and potential damage to the engine over time.

6. How can I repair OBDII code P0451 in my 2008 Ford Fusion?

- Repairing this code may involve replacing the evaporative emission control system pressure sensor, repairing damaged wiring or connectors, fixing any leaks in the system, or ensuring the gas cap is tightened properly.

7. Is it necessary to reset the OBDII code P0451 after repairing the issue in a 2008 Ford Fusion?

- Yes, it is important to reset the code using an OBDII scanner after repairing the underlying issue to clear the check engine light and ensure proper operation of the vehicle's emissions system.

8. What are some preventive maintenance tips to avoid OBDII code P0451 in a 2008 Ford Fusion?

- Regularly checking and tightening the gas cap, inspecting the evaporative emission control system for leaks, and addressing any fuel system issues promptly can help prevent this code from occurring.

9. Can a DIY enthusiast fix OBDII code P0451 in a 2008 Ford Fusion?

- Depending on the level of expertise, a DIY enthusiast may be able to diagnose and repair this code by following repair manuals, utilizing proper tools, and having a good understanding of automotive systems.

10. How long does it typically take to repair OBDII code P0451 in a 2008 Ford Fusion?

- The time to repair this code can vary based on the specific issue, but it may take anywhere from 1 to 3 hours for a professional mechanic to diagnose and fix the problem.