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Home >> Jeep >> 2008 >> Liberty Limited, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0420 To P0563 >> P0457-Loose Fuel Cap >> Monitor Conditions

Monitor Conditions

  1. When Monitored: 

    Ignition on. Ambient Temperature between 4° C and 32° C (39° F and 89° F). Close Loop fuel system. Test runs after the medium leak test is inconclusive and the PCM has senses a fuel increase.