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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 3.6L - DTCS P0157 To P0457 >> Diagnosis And Testing >> P0457-Loose Fuel Cap >> When Monitored

When Monitored

Engine running. Ambient Temperature between 4° C and 35° C (40° F and 95° F) Close Loop fuel system. Test runs after failing the large leak size test as inconclusive and the PCM has sensed a fuel increase.