2002 Mitsubishi Galant Logo
Posted on Jan 06, 2010
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What is an error for P0456. Found this code when i took an emmissions test today, and failed. what will i need to do/fix to get it reset and to pass?

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  • Posted on Jan 07, 2010
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This is an evaporative emmisions - small leak detected. Sometimes caused by fueling with the engine running (the fuel cap has to seal the fuel tank for the pressure sensor to read correctly), but can be a leak at the evaporative canister, Check valve on top of the fuel tank cracked and a host of other components, fittings or leak points. Best bet is to have a diagnostic done by a shop which should include pressurizing lines, etc.

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