AutoCodesFord – P0457 2006 Ford Fusion

P0457 2006 Ford Fusion Code - EVAP Control System Leak Detected Fuel Filler Cap Loose/Off

Quick Answer

The Powertrain Control Module (PCM) continuously monitors the fuel level and retains the last updated value prior to the ignition switch being placed in the OFF position. Common causes include Missing fuel filler cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close. 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
P0457 2006 Ford Fusion indicates EVAP Control System Leak Detected Fuel Filler Cap Loose/Off.
Common causes
Common causes include Missing fuel filler cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,553
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0457 2006 Ford Fusion Description

The Powertrain Control Module (PCM) continuously monitors the fuel level and retains the last updated value prior to the ignition switch being placed in the OFF position. After the ignition switch is placed in the ON position a new fuel level is taken and compared to the level recorded at ignition off. If the fuel level has increased, a flag is set in the PCM indicating the vehicle was refueled. If the evaporative emission (EVAP) monitor detects a gross leak while the refueling flag is set, a loose fuel filler cap or an incorrectly sealed fuel tank filler pipe (if equipped) is suspected and the DTC is set. On most vehicles when the DTC sets, either the check fuel cap indicator illuminates or a message on the instrument cluster displays to instruct the driver to check the fuel cap or capless fuel tank filler pipe (if equipped).
OBDII Code P0457 2006 Ford Fusion - EVAP Control System Leak Detected Fuel Filler Cap Loose/Off - AutoCodes.com
P0457 2006 Ford Fusion Code - EVAP Control System Leak Detected Fuel Filler Cap Loose/Off

What are the Possible Causes of the DTC P0457 2006 Ford Fusion?

  • Missing fuel filler cap
  • Incorrect fuel filler cap used
  • Fuel filler cap remains open or fails to close
  • Foreign matter caught in fuel filler cap

How to Fix the DTC P0457 2006 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 P0457 2006 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 P0457 2006 Ford Fusion code?

Need more information on how to fix the P0457 2006 Ford Fusion code? Get Access to Factory Service Manuals

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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 P0457 2006 Ford Fusion Code

1. What does the OBDII code P0457 mean on a 2006 Ford Fusion?

P0457 indicates that the EVAP (Evaporative Emission Control) system has detected a leak, often due to a loose or missing fuel filler cap.

2. What are the common symptoms of P0457 in a 2006 Ford Fusion?

The most common symptom is the check engine light (CEL) illuminating. In some cases, you might also notice a fuel smell near the vehicle.

3. What causes the P0457 code to appear?

The most common cause is a loose, damaged, or missing fuel filler cap. Other potential causes include leaks in the EVAP system or a faulty vent or purge valve.

4. Can I still drive my 2006 Ford Fusion with a P0457 code?

Yes, the car is typically safe to drive, but it’s important to address the issue promptly to prevent emissions-related problems and ensure proper fuel efficiency.

5. How do I fix the P0457 code on my 2006 Ford Fusion?

Start by checking the fuel filler cap to ensure it’s tight and in good condition. If the cap is fine, you may need to inspect the EVAP system for leaks or faulty components.

6. How do I know if the fuel filler cap is causing the P0457 code?

Inspect the cap for cracks, damage, or a loose fit. Tighten it until it clicks, and then clear the code to see if it returns.

7. Can a faulty EVAP purge valve trigger the P0457 code?

Yes, a malfunctioning purge valve can cause a leak or improper pressure in the EVAP system, leading to the P0457 code.

8. How much does it cost to repair the P0457 code on a 2006 Ford Fusion?

Repair costs vary depending on the cause. A replacement fuel filler cap costs around $10-$30, while diagnosing and fixing EVAP leaks or faulty components can range from $100 to $300 or more.

9. How do I reset the P0457 code after fixing the issue?

You can use an OBDII scanner to clear the code, or the car’s computer may reset it automatically after several drive cycles if the issue is resolved.

10. What happens if I ignore the P0457 code on my 2006 Ford Fusion?

Ignoring the code can lead to reduced fuel efficiency, increased emissions, and potential damage to other EVAP system components over time.

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