AutoCodes – Ford – P0451 2009 Ford Fusion

P0451 2009 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 2009 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 4,044

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 2009 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 2009 Ford Fusion - Evaporative Emission Control System Pressure Sensor Range/Performance - AutoCodes.com — P0451 2009 Ford Fusion Code - Evaporative Emission Control System Pressure Sensor Range/Performance

What does this mean?

What are the Possible Causes of the DTC P0451 2009 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 2009 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 2009 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 2009 Ford Fusion 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 P0451 2009 Ford Fusion Code

1. What does the OBDII code P0451 on a 2009 Ford Fusion mean?

The code P0451 indicates a problem with the Evaporative Emission Control System Pressure Sensor Range/Performance.

2. What are the common symptoms of a P0451 code in a 2009 Ford Fusion?

Common symptoms include the check engine light being illuminated, decreased fuel efficiency, and potential difficulties starting the vehicle.

3. What are the possible causes of a P0451 code in a 2009 Ford Fusion?

Possible causes include a faulty evaporative emission control system pressure sensor, issues with the wiring or connectors related to the sensor, or a leak in the evaporative emission control system.

4. How can I diagnose a P0451 code in a 2009 Ford Fusion?

Diagnosis typically involves using an OBDII scanner to read the code, checking the sensor and its connections for any visible damage, and inspecting the evaporative emission control system for leaks.

5. Can a P0451 code in a 2009 Ford Fusion cause any long-term damage if left untreated?

While the vehicle may still be operable with this code, it is important to address it promptly to prevent potential damage to the engine or emissions system over time.

6. How can I repair a P0451 code in a 2009 Ford Fusion?

Repairing a P0451 code may involve replacing the evaporative emission control system pressure sensor, repairing any damaged wiring or connectors, or fixing leaks in the evaporative emission control system.

7. Is it safe to continue driving a 2009 Ford Fusion with a P0451 code?

It is generally safe to drive the vehicle with a P0451 code, but it is recommended to address the issue as soon as possible to prevent any potential long-term problems or damage.

8. How much does it typically cost to repair a P0451 code in a 2009 Ford Fusion?

The cost of repairs for a P0451 code can vary depending on the specific issue, but it may range from around $100 to $300 or more, including parts and labor.

9. Can a P0451 code in a 2009 Ford Fusion be triggered by a loose gas cap?

While a loose gas cap can sometimes trigger an evaporative emission control system code, the P0451 code specifically relates to the pressure sensor's range or performance and may indicate a different issue.

10. Will resetting the check engine light resolve a P0451 code in a 2009 Ford Fusion?

Resetting the check engine light may temporarily clear the code, but it will not fix the underlying issue causing the P0451 code. It is important to diagnose and address the root cause of the problem to prevent the code from reoccurring.