P0457 on FORD FUSION
EVAP System Leak Detected (fuel cap loose/off)
What P0457 Means on Your FORD FUSION
P0457 is a diagnostic trouble code indicating: EVAP System Leak Detected (fuel cap loose/off). This code relates to the emission controls system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real FORD FUSION Owner Reports
Source: NHTSA Complaints Database
"Fuel cap codes, emission control codes and throttle actuator control code are now on all the time. i had taken it back to ford, but light had went out at the time. i was told that the codes do not log in ecm. i was told they could hook up equipment, there would be no codes and the cost $90.00."
"During initial acceleration the car will lose power and start shaking sporadically. the car will not stall but it does not accelerate even when the gas peddle is depressed. the car has to be restarted to stop behavior. check engine light appeared after the behavior persisted for about a week."
"Code p0457 and p1450 keep coming up. the description is a fault with the fuel filler near the gas tank. a recall for the fuel gas tank filler was previously performed."
"Two codes keep coming up. p0457 and p1450. these are for the emissions evaporation system. the dealer has completed recall repair and claims it is ok."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on FORD FUSION
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.