Thread: P1456 Will the car run and shift rough??
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Old Sep 2, 2004 | 04:33 AM
  #6  
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JimBlake
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Canister vent-shut valve would throw P1457. That one happened to me. They're both part of the EVAP system, but P1456 is for the gas tank & P1457 is for the canister system.
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