OBDII Code List
P0456 2008 FORD FUSION

P0456 2008 FORD FUSION - EVAP System Leak Detected Gross Leak/No Flow

Repair Importance Level: 1/3
Repair Difficulty Level: 3/3  What does this mean?

Possible causes

  • Missing or loose fuel cap
  • Incorrect fuel filler cap used
  • Fuel filler cap remains open or fails to close
  • Foreign matter caught in fuel filler cap
  • Evaporative Emission (EVAP) canister or fuel tank leaks
  • Evaporative Emission (EVAP) system hose leaking
  • Fuel tank leaking
  • When is the code detected?

    Evaporative Emission (EVAP) control system has a very large leak such as fuel filler cap fell off, EVAP control system does not operate properly.

    Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Possible a noticeable fuel odor caused by the release of fuel vapors
  • P0456 2008 Ford Fusion Description

    The powertrain control module (PCM) monitors the complete evaporative emission (EVAP) control system for the presence of a very small fuel vapor leak. The system failure occurs when a fuel vapor leak from an opening as small as 0.508 mm (0.020 inch) is detected by the EVAP running loss monitor test.
    OBDII Code P0456 2008 Ford Fusion - EVAP System Leak Detected Gross Leak/No Flow - Engine-Codes.com

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