Error Code: P1456 EVAP System Leak Detected (Fuel Tank System)

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Old Feb 20, 2007 | 05:29 PM
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Chr8808's Avatar
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Error Code: P1456 EVAP System Leak Detected (Fuel Tank System)

P1456 EVAP System Leak Detected (Fuel Tank System)
Anyone with a helms able to list the procedure for this?? Or does anyone have experience on this?

TIA
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Old Feb 20, 2007 | 06:41 PM
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GreenMonster's Avatar
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Do a search here for P1456...

Could be something just as simple as having a loose gas cap or refueling the car with the engine running... (or that what's the search results told me)...
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Old Feb 20, 2007 | 08:51 PM
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belcom's Avatar
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Just had a P1456 the other day but with a different message though. It said "Fuel tank temperature sensor circuit malfunction". I reset the light, retightened the gas cap and all is fine. This code is usually the loose gas cap.
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Old Feb 21, 2007 | 07:54 AM
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Not always. A bad purge valve will trigger it as well.
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