OBD Code P0457

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

What’s mean?

OBD2 Code P0457 Definition:
A fuel tank pressure change less than a minus (-) 7 inches of water in 30 seconds has occurred after refueling; or there is excessive purge (fuel vapor) flow greater than 0.06 pounds per minute.

Symptoms

Possible sumptoms of P0457
– Engine Light ON (or Service Engine Soon Warning Light) – Possible a noticeable fuel odor caused by the release of fuel vapors – Fuel cap indicator lamp (FCIL) may be illuminated.

Possible Causes

Possible causes of P0457
– Damaged, missing or loosely installed fuel filler cap. The Error code is generally activated on detection of the following conditions: EVAP control system has a very large leak such as fuel filler cap fell off

Possible Solutions

Check for a loose, missing or damage fuel filler the cap.