Technical Definition:

Evaporative Emission System Leak Detected (fuel cap loose/off)

Trouble Code: P0457
Address: 0x0457
System: Powertrain
Technical Description:

Possible Causes:

Possible Symptoms:

EVAP Control System Leak Detected Fuel Filler Cap Loose/Off

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Damaged, missing or loosely installed fuel filler cap

Specific Makes:

– Possible a noticeable fuel odor caused by the release of fuel vapors
– Fuel cap indicator lamp (FCIL) may be illuminated.

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