What P0457 means
Fuga detectada en sistema de control de contaminación por evaporación (tapa del depósito de combustible suelta/faltante)
Common causes (general)
Before spending money on parts, verify the code with a scan tool and read freeze frame data. Freeze frame captures every sensor value at the moment the code set — this is often enough to figure out the root cause without further testing.
Manufacturer-specific descriptions
Different manufacturers use this code for slightly different failure modes. Here's what your specific make means by P0457:
| BMW | Evaporative Emission System Leak Detected (fuel cap loose/off) |
| HONDA | Evaporative Emission (EVAP) System Leak Detected Fuel Fill Cap Loose/Off |
Read this code on your own car
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