Ford P0457 OBD-II Trouble Code Definition: P0457 EVAP System Leak Detected/Fuel Fill Cap Loose Or Missing P0457 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0457 Evaporative Emission System Leak Detected (fuel cap loose/off) What does the code mean? OBD-ii Code P0457 definition: A fuel tank pressure change less than a minus (-) 7 inches of water […]