AutoCodes – Ford – P0457 2010 Ford Fusion

P0457 2010 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 2010 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.

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Code Popularity 8,221

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
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0457 2010 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 2010 Ford Fusion - EVAP Control System Leak Detected Fuel Filler Cap Loose/Off - AutoCodes.com — P0457 2010 Ford Fusion Code - EVAP Control System Leak Detected Fuel Filler Cap Loose/Off

What does this mean?

What are the Possible Causes of the DTC P0457 2010 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 2010 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 2010 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.

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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 2010 Ford Fusion Code

1. What does OBDII code P0457 for a 2010 Ford Fusion indicate?

- P0457 signifies that the EVAP control system has detected a leak due to a loose or missing fuel filler cap.

2. What are the common symptoms of a P0457 code in a 2010 Ford Fusion?

- Common symptoms include the illumination of the check engine light, a possible fuel odor near the vehicle, and potential issues during emissions testing.

3. What are the possible causes of a P0457 code in a 2010 Ford Fusion?

- The primary cause is often a loose, improperly secured, or missing fuel filler cap. Other causes may include a damaged fuel filler neck or a leak in the EVAP system.

4. How serious is a P0457 code in a 2010 Ford Fusion?

- While a P0457 code is not an immediate threat to the vehicle's drivability or safety, it can lead to increased emissions and potential environmental impact. It is recommended to address the issue promptly.

5. How can I diagnose a P0457 code in my 2010 Ford Fusion?

- Start by checking the fuel filler cap to ensure it is tightened correctly. Inspect the cap and filler neck for any visible damage. If the issue persists, a professional diagnostic scan tool may be needed to pinpoint the exact cause.

6. Can I repair a P0457 code in my 2010 Ford Fusion myself?

- Yes, if the issue is simply a loose fuel filler cap, tightening or replacing it can resolve the problem. However, for more complex issues like leaks in the EVAP system, it is recommended to seek professional assistance.

7. How much does it cost to fix a P0457 code in a 2010 Ford Fusion?

- The cost of fixing a P0457 code can vary depending on the underlying cause. If it's just a loose fuel filler cap, the repair cost is minimal. However, if there are other issues in the EVAP system, the repair costs can increase significantly.

8. Can I drive my 2010 Ford Fusion with a P0457 code?

- It is generally safe to drive the vehicle with a P0457 code, especially if there are no other noticeable issues. However, it is recommended to address the problem promptly to prevent any potential environmental impact.

9. How long does it take to fix a P0457 code in a 2010 Ford Fusion?

- The repair time can vary depending on the cause of the code. If it's just a matter of tightening the fuel filler cap, the fix can be done quickly. For more complex issues, it may take longer to diagnose and repair.

10. Will a P0457 code reset itself in a 2010 Ford Fusion?

- The check engine light may turn off on its own if the issue is resolved, such as tightening the fuel filler cap. However, it is recommended to have the code cleared using a diagnostic scan tool to ensure the problem is fully addressed.